[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]
Cactus-inspired membranes with nanocrack coatings boost fuel cell performance significantly
April 29, 2016
Regulating water content in polymeric membranes is important in a number of applications—such as in the proton-exchange fuel-cell membranes used in automotive fuel cell stacks. Researchers from CSIRO in Australia and Hanyang University in Korea have now developed a new type of hydrocarbon polymer membrane that has the potential to deliver a significant boost in fuel cell performance.
Water content in the membranes is regulated through nanometer-scale cracks (nanocracks) in a hydrophobic surface coating. These cracks work as nanoscale valves to retard water desorption and to maintain ion conductivity in the membrane on dehumidification. In a paper published in the journal Nature, the researchers reported that hydrocarbon fuel-cell membranes with these surface nanocrack coatings operated at intermediate temperatures show improved electrochemical performance.
LLNL 3D-printed foam outperforms standard materials
April 27, 2016
Lawrence Livermore National Laboratory (LLNL) material scientists have found that 3D-printed foam works better than standard cellular materials in terms of durability and long-term mechanical performance.
Foams, also known as cellular solids, are an important class of materials with applications ranging from thermal insulation and shock-absorbing support cushions to lightweight structural and floatation components. Such material is an essential component in a large number of industries, including automotive, aerospace, electronics, marine, biomedical, packaging and defense.
NEC, NEC TOKIN and Tohoku University develop spin-Seebeck thermoelectric device w/ 10x better conversion efficiency
April 25, 2016
NEC Corporation, NEC TOKIN Corporation and TOHOKU UNIVERSITY have jointly created a thermoelectric (TE) device using the spin Seebeck effect (SSE) with conversion efficiency 10 times higher than a test module that was produced based on a multi-layered SSE technology published by the Tohoku University group in 2015.
The spin-Seebeck effect is a thermoelectric effect discovered in 2008 by Prof. Eiji Saitoh and Associate Prof. Ken-ichi Uchida of Tohoku University (Keio University at that time). This is a phenomenon in which a temperature gradient applied in a magnetic material produces a spin current along the temperature gradient. The spin current is a flow of a magnetic property of an electron.
Continental showcases car tires and engine mounts with rubber made from dandelion roots; targeting series production in 5-10 years
Continental has developed and tested car tires and engine mounts with rubber made from dandelion roots. In 2014, Continental brought onto the road the first sample of a premium winter tire featuring tread made from dandelion rubber. (Earlier post.) At the end of 2015, ContiTech tested the new renewable resource, named TARAXAGUM, in engine mounts. The company is striving for series production in five to ten years.
Continental says that the plant has the potential to become an alternative, environmentally friendly resource and could further reduce dependency on traditionally produced natural rubber. Not only this, but because it grows under moderate climatic conditions, it can also generate savings in CO2 emissions and transport costs.
NanoSteel and AK Steel deliver next-gen advanced high-strength steel to GM
April 21, 2016
NanoSteel, a leader in nanostructured steel materials (earlier post), announced the delivery of its first advanced high-strength steel (AHSS) to General Motors for initial testing. GM Ventures invested in NanoSteel in 2012. (Earlier post.)
Designed to provide automakers with a new standard in material performance, the sheet steel is poised to accelerate vehicle lightweighting initiatives focused on affordably meeting rising global fuel-economy regulations. Production of the material, targeted to the $100 billion-plus automotive steel market, is the result of a multi-year joint development program between NanoSteel and AK Steel Corporation—an industry-leading innovator in steel product development.
Toyota to pioneer use of biosynthetic rubber in engine and drive system hoses
Next month, Toyota will become the first automaker to use biohydrin, a newly-developed biosynthetic rubber product, in engine and drive system hoses.
Jointly developed by Toyota, Zeon Corporation, and Sumitomo Riko Co., Ltd., biohydrin rubber is manufactured using plant-derived bio-materials instead of epichlorohydrin, a commonly-used epoxy compound. Since plants absorb CO2 from the atmosphere during their lifespan, such bio-materials achieve an estimated 20% reduction in material lifecycle carbon emissions in comparison to conventional petroleum-based hydrin rubber.
Outokumpu and Fraunhofer Institute develop lightweight stainless steel battery pack for EVs; up to 20% weight reduction
April 19, 2016
Finland-based stainless steel expert Outokumpu is working on lightweight stainless steel solutions for electric vehicles in cooperation with Fraunhofer Institute for Laser Technology ILT, in Germany. Their latest innovation is a new battery pack that combines several lightweight engineering technologies as well as new types of cooling and structural strategies.
The Forta H1000 fully-austenitic, ultra-high-strength stainless steel (an advanced manganese-chromium alloy) from Outokumpu enables the implementation of structural lightweight engineering initiatives, while providing a high level of safety.
BAIC BJEV in strategic cooperation with Dresden University of Technology for lightweighting technology
April 14, 2016
Beijing Electric Vehicle Co., Ltd. (BAIC BJEV), a subsidiary of BAIC, signed a strategic cooperation agreement with Dresden University of Technology (TUD) to create the Sino-German Automotive Light Weighting Technology Joint R&D Center. The two also entered into a letter of intent on the establishment of Sino-German Automotive Light Weighting Technology Engineering Center Co., Ltd. TUD Distinguished Senior Professor Werner Hufenbach was named chief scientist in lightweight technology for BAIC BJEV.
The Sino-German Light Weighting R&D Center will become the company’s fifth overseas R&D center. BAIC BJEV has been building its global R&D network in its core areas, i.e. electric and smart technologies, by establishing oversea R&D centers in Silicon Valley, USA; Aachen, Germany; Detroit, USA; and Barcelona, Spain. (Earlier post.)
Lawrence Livermore team shows carbon nanotube porins are fastest known proton conductors; potential application for PEM fuel cells
April 05, 2016
Lawrence Livermore National Laboratory (LLNL) researchers have shown that 0.8-nm-diameter carbon nanotube porins, which promote the formation of one-dimensional water wires, can support proton transport rates exceeding those of bulk water by an order of magnitude.
The transport rates in these nanotube pores also exceed those of biological channels and Nafion—one of the most common and commercially available membranes for proton exchange membrane (PEM fuel cells). Carbon nanotubes are the fastest known proton conductor. The research appears in the journal Nature Nanotechnology. Practical applications include proton exchange membranes (PEMs); proton-based signaling in biological systems; and the emerging field of proton bioelectronics (protonics).
SSAB, LKAB and Vattenfall launch long-term initiative for CO2-free ironmaking for steel production
April 04, 2016
Swedish-Finnish steel company SSAB, mining company LKAB and power company Vattenfall have launched an initiative to develop a steel production process that emits water rather than carbon dioxide.
The aim of the HYBRIT (Hydrogen Breakthrough Ironmaking Technology) project is to reduce carbon dioxide emissions from ironmaking to zero by eliminating the need to use fossil fuel for iron ore reduction. The idea is to replace the blast furnaces with an alternative process, using hydrogen produced from “clean” electricity.
PNNL team develops higher-strength, lower-cost titanium alloy aimed at improving vehicle fuel economy and reducing CO2 emissions
April 02, 2016
An improved titanium alloy—stronger than any commercial titanium alloy currently on the market—gets its strength from the novel way atoms are arranged to form a special nanostructure. For the first time, a team led by researchers at Pacific Northwest National Laboratory (PNNL) have been able to see this alignment and then manipulate it to make the strongest titanium alloy (hierarchical nanostructured Ti-185, or HNS Ti-185) yet developed. On top of the gains in strength, the new alloy benefits from a lower cost process.
In an open access paper published in the journal Nature Communications, the researchers note that that material is an excellent candidate for producing lighter vehicle parts, and that this newfound understanding may lead to creation of other high strength alloys.
New Federal-Mogul Powertrain piston skirt coatings increase durability for the life of pistons
March 30, 2016
Federal-Mogul Powertrain has introduced two innovative piston skirt coatings: EcoTough-New Generation (for gasoline engines) and EcoTough-D (for diesel engines). Building on the proven performance of previous EcoTough coatings, the new formulations further reduce engine friction, wear and noise while dealing with the increasingly challenging loads and temperatures that exist in the latest downsized, turbocharged engines.
Gasoline and diesel engines require alternative solutions because of important differences in their relative combustion loads, piston geometry and the lubricity of their respective fuels. Federal-Mogul Powertrain has accommodated these differences by formulating specific coatings, each optimized for either gasoline or diesel application.
Successful performance test of natural Albany graphite versus synthetic graphite in a Ballard fuel cell stack; potential cost reduction
Zenyatta Ventures Ltd. and Ballard Power Systems announced the successful performance testing of high-purity Albany graphite in components of a Ballard fuel cell stack. This Phase 4 testing program was designed to show viability of Zenyatta’s Albany graphite compared to synthetic graphite under realistic fuel cell operating conditions.
The membrane electrode assembly (MEA), which includes the gas diffusion layer (GDL), is a critical component of a PEM fuel cell that must meet exacting performance standards for the fuel cell to be robust and reliable. Ballard prototyped GDLs from Zenyatta graphite—which included an anode and cathode sub layer—and then incorporated it into a MEA that was tested in a fuel cell stack to characterize fuel cell performance.
ORNL seeking US manufacturers to license new carbon fiber process; reduces cost up to 50% and energy up to 60%
March 24, 2016
Researchers at the Department of Energy’s Oak Ridge National Laboratory have demonstrated a production method they estimate will reduce the cost of carbon fiber as much as 50% and the energy used in its production by more than 60%. After extensive analysis and successful prototyping by industrial partners, ORNL is making the new process available for licensing.
A detailed analysis of the new process compared to a published baseline for conventional carbon fiber production examined manufacturing cost of nine major process steps, starting with the precursor and pretreatment and finishing with surface treatment, sizing, winding, inspection and shipping. The analysis revealed the new process yields significant reductions in materials, capital and labor costs resulting in an overall manufacturing cost reduction of up to 50%. Details of the cost analysis will be shared with the prospective licensees.
ORNL team develops better moldable thermoplastic by using lignin; 50% renewable content
March 23, 2016
Researchers at Oak Ridge National Laboratory (ORNL) have developed a new class of high-performance thermoplastic elastomers for cars and other consumer products by replacing the styrene in ABS (acrylonitrile, butadiene and styrene) with lignin, a brittle, rigid polymer that, with cellulose, forms the woody cell walls of plants.
In doing so, they have invented a solvent-free production process that interconnects equal parts of nanoscale lignin dispersed in a synthetic rubber matrix to produce a meltable, moldable, ductile material that’s at least ten times tougher than ABS. The resulting thermoplastic—called ABL for acrylonitrile, butadiene, lignin—is recyclable, as it can be melted three times and still perform well. The results, published in the journal Advanced Functional Materials, may bring cleaner, cheaper raw materials to diverse manufacturers.
Series production of next-generation Acura NSX hybrid supercar begins in April at new Performance Manufacturing Center
March 17, 2016Acura’s Performance Manufacturing Center (PMC) will begin series production of the next-generation Acura NSX hybrid supercar (earlier post) in late April, with customer deliveries to commence thereafter.
The PMC is constructing the Acura supercar entirely in-house and, like the NSX itself, is a clean-sheet development—a manufacturing facility designed around the NSX’s unique Multi-Material Body and aluminum-intensive space-frame design and optimized for low-volume production of high-performance specialty vehicles.
Continental Structural Plastics and Mitsubishi Rayon exploring joint venture for carbon fiber automotive structural components
March 08, 2016
Continental Structural Plastics (CSP) has signed a memorandum of understanding with Mitsubishi Rayon (MRC), regarding the development and manufacturing of innovative carbon fiber structural components for the automotive industry in North America. Under the MoU, CSP and MRC will begin detailed studies to substantiate the establishment of an equity-based joint venture.
Specifically, the new joint venture will produce compression molded components made from carbon fiber reinforced plastic materials, which could include carbon fiber sheet molded compound (SMC) and/or Pre-preg carbon fiber Compression Molding (PCM).These components will include Class A body panels, as well as non-class A structural automotive applications including: pillars; engine cradles or supports; radiator supports; frames and rails; bumper beams; underbody shields; door inners and intrusion beams.
UT, Oak Ridge scientists gain new insights into atomic disordering of complex metal oxides; materials for energy applications
A team from the University of Tennessee, Oak Ridge National Laboratory, Stanford University, the University of Michigan and Forschungszentrum Jülich Institute of Energy and Climate Research has used neutron total scattering to gain new insights into atomic disordering of complex metal oxides.
This provides a new basis for understanding order-to-disorder transformations important for applications such as plutonium immobilization (host materials for nuclear waste containment), fast ion conduction (solid oxide fuel cells), and thermal barrier coatings (gas turbine jet engines). A paper on their work is published in the journal Nature Materials.
Faurecia using flax-based composite in Urban Liftgate demonstrator
March 07, 2016
Faurecia’s recently introduced Urban Liftgate demonstrator is a showcase for several innovations designed to rethink the rear-end of vehicles. Among the innovations is the use of a new type of composite made of natural flax fibers instead of carbon.
Although the flax-based composite is not comparable mechanically to carbon fiber composites, said Laurent Gillard, Senior Engineering Manager, it has its own intersting properties and offers a lower-cost than carbon fiber and an environmentally friendly solution for lightweighting. The flax-fiber composite provides a weight savings of around 45% Gillard said—in the ballpark of the estimated 50% weight savings from carbon fiber.
Toyota and Yanmar to collaborate on marine development and products; Toyota Hybrid Hulls
March 05, 2016
Toyota Motor Corporation and Yanmar Co., Ltd. have reached a wide-ranging agreement to collaborate on technical development, production, and mutual parts use in the marine industry. A concept craft previewing the first product developed under this collaboration was on display at the Japan International Boat Show this week.
Toyota currently manufactures and sells aluminum-hulled pleasure crafts equipped with automotive engines. Yanmar is an industrial device manufacturer that has specialized in industrial diesel engines. The company also manufactures marine engines, as well as fiberglass-reinforced plastic (FRP) fishing boats and industrial vessels.
Argonne and Los Alamos national laboratories partner to find alternative to platinum in hydrogen fuel cells; Electrocatalysis Consortium
March 02, 2016
Researchers at the US Department of Energy’s (DOE) Argonne and Los Alamos national laboratories have teamed up to support a DOE initiative through the creation of the Electrocatalysis Consortium (ElectroCat), a collaboration devoted to finding an effective but cheaper alternative to platinum in hydrogen fuel cells. ElectroCat is one of four consortia that make up DOE’s new Energy Materials Network (EMN). (Earlier post.)
About half of the total cost of a typical automotive fuel cell stack comes directly from the cost of the platinum metal in the electrode catalysts. ElectroCat is dedicated to finding new ways to replace rare and costly platinum group metals in fuel cell cathodes with more accessible and inexpensive substitutes such as materials based on the earth-abundant metals iron and cobalt.
Toho Tenax develops integrated production system for CFRP; projects in automotive
Toho Tenax Europe GmbH (TTE), the German subsidiary of Toho Tenax, itself the core company of the Teijin Group’s carbon fibers and composites business, has developed an integrated production system for carbon fiber-reinforced plastic (CFRP) that enables manufactured composite parts to be optimized for required shapes and properties.
The new production system uses a high-pressure resin transfer molding (HP-RTM) process and TTE’s own one-step carbon fiber to part technology, called Part via Preform (PvP), which it developed in 2014. One European automaker has already adopted this system and other projects are under way in the automotive industry.
DOE launches Energy Materials Network with $40M for first year
February 25, 2016
The US Department of Energy launched the Energy Materials Network (EMN), a new National Laboratory-led initiative. Leveraging $40 million in federal funding in its first year, EMN will focus on tackling one of the major barriers to widespread commercialization of clean energy technologies: the design, testing, and production of advanced materials. By strengthening and facilitating industry access to the unique scientific and technical advanced materials innovation resources available at DOE’s National Labs, the network will help bring these materials to market more quickly.
DOE’s Office of Energy Efficiency and Renewable Energy is providing the funding to establish EMN’s four initial National Laboratory-led consortia and solicit proposals for collaborative R&D projects with industry and academia. Each EMN consortium will bring together National Labs, industry, and academia to focus on specific classes of materials aligned with industry’s most pressing challenges related to materials for clean energy technologies.
Faurecia wins JEC World 2016 Innovation Award for “one-shot” composite manufacturing process; mass production slated for 2018
Faurecia has won a JEC World 2016 Innovation Award for its “one-shot” manufacturing process for visible composite parts; the approach combines structure and aspect in a single part. The technology makes it possible to insert a pre-heated thermoplastic composite reinforcement into the injection mold and secure it in a stable position.
The efficient process was demonstrated on a plastic tailgate with a pre-impregnated (prepreg) glass fiber reinforcement and is particularly suited to tailgates, lower tailgates and semi‑structural parts. The main benefits of this process are improvements in weight, quality, cost and cycle times.
DOE requesting information on critical energy materials, including fuel cell platinum group metal catalysts
February 18, 2016
The US Department of Energy (DOE) has released a Request for Information (RFI) on critical materials in the energy sector, including fuel cell platinum group metal catalysts. The RFI is soliciting feedback from industry, academia, research laboratories, government agencies, and other stakeholders on issues related to the demand, supply, opportunities for developing substitutes, and potential for using materials more efficiently in the energy sector. The information received from the RFI will be used to update the analyses in DOE’s Critical Material Strategy Reports that were released in 2010 and 2011.
Building on the work of the 2010 and 2011 Critical Materials Strategy reports, the RFI seeks information on materials used in a variety of energy technologies, from generation to end use, and their manufacturing processes. Topics of interest include material intensity; market projections; technology transitions; primary production; supply chains; and recycling.
Toho Tenax develops energy-saving, high-productivity carbonizing process and surface treatment technologies for CFRP
January 18, 2016
Toho Tenax Co., Ltd., the core company of the Teijin Group’s carbon fibers and composites business, has developed innovative microwave carbonization and plasma surface treatment technologies to support the increased production and use of carbon fiber reinforced plastic (CFRP) in automobiles, high-speed railcars and aircraft.
Toho Tenax is now working to commercialize the technologies for mass production in the coming future, when CFRP is expected to be used on an increasingly large scale. For CFRP solutions broadly incorporating everything from raw materials to composite materials, the company has been placing a special emphasis on reducing production-use energy and CO2 emissions by 50% while improving productivity.
HRL Labs team develops 3D printing process for ceramics; propulsion components, microelectromechanical systems and more
January 01, 2016
Researchers at HRL Laboratories have achieved a new milestone in 3D printing technology by developing a process that overcomes the limits of traditional ceramic parts and enables the development of high temperature, high strength ceramic components. Because ceramics cannot be cast or machined easily, three-dimensional (3D) printing enables a big leap in geometrical flexibility. A paper on their work is published in the journal Science.
The extremely high melting point of many ceramics makes them challenging for additive manufacturing as compared with metals or polymers. The HRL team developed pre-ceramic monomers that are cured with ultraviolet light in a stereolithography 3D printer or through a patterned mask, forming 3D polymer structures that can have complex shape and cellular architecture.
UCLA researchers develop exceptionally strong and lightweight new metal nanocomposite
December 24, 2015
A team led by researchers from the UCLA Henry Samueli School of Engineering and Applied Science has created a super-strong yet light structural metal nanocomposite with extremely high specific strength and modulus, or stiffness-to-weight ratio. The new metal is composed of magnesium infused with a dense and even dispersal of ceramic silicon carbide nanoparticles. It could be used to make lighter airplanes, spacecraft, and cars, helping to improve fuel efficiency, as well as in mobile electronics and biomedical devices.
To create the super-strong but lightweight metal, the team developed a new way to disperse and stabilize nanoparticles in molten metals. They also developed a scalable manufacturing method that could pave the way for more high-performance lightweight metals. A paper on their work is published today in Nature.
Ford and Corning introduce lightweight Gorilla Glass hybrid windshield technology on Ford GT
December 17, 2015
Ford and Corning have developed Gorilla Glass hybrid windshield technology—a light-weighting innovation set to debut on the all-new Ford GT. The Gorilla Glass hybrid is thinner and about 30% lighter than traditional laminate glass, and will improve Ford GT handling by lowering the vehicle’s center of gravity and positively impact acceleration, fuel economy and braking performance. The Gorilla Glass hybrid window will be used on both the windshield and rear engine cover of Ford GT.
When tasked with developing lightweight and advanced material vehicle applications, the Ford team approached Corning, a recognized leader in materials science that introduced light and durable Gorilla Glass to the consumer electronics market in 2007. Interested in further exploring potential automotive applications, Ford engaged Corning to help research and develop a unique formulation for exterior vehicle glass.
Argonne study shows high-energy X-rays give industry affordable way to optimize cast iron
December 08, 2015
Researchers at Argonne National Laboratory, in partnership with Caterpillar, have used high-energy synchrotron X-ray tomography to perform quantitative 3D-characterization of the distribution of graphite particles in high-strength compacted graphite iron (CGI). The size and morphology of graphite particles play a crucial role in determining various mechanical and thermal properties of cast iron.
The study results, published in Scripta Materialia showed that high-energy X-ray tomography can reveal previously unknown behaviors of graphite in cast iron, such as the growth of nodules, as it undergoes various treatments.
GM applies Gen 3 advanced high-strength steel in new vehicle for China; 1,200 MPa Q&P steel
December 03, 2015
General Motors is applying third-generation advanced high-strength steel to the new Chevrolet LOVA RV from SAIC-GM, thereby reducing the weight of selected body components by approximately 20%. The recreational vehicle (RV) was launched on 19 November 2015.
The new steel offers a superior balance of strength and ductility as compared to the first generation of high-strength steels. The fuel economy of a vehicle is generally considered to increase by 6 to 8% for every 10% reduction in body weight.
KIT researchers developing low-pressure carbonitriding process for hardening steel with methylamine; applications in downsized engines
November 23, 2015
A team at the Karlsruhe Institute of Technology (KIT) is developing a new low-pressure process for hardening steel using methylamine. The new low-pressure carbonitriding (enriching low-alloy steels with carbon and nitrogen) process saves time and process gas. Steels hardened in this way are suited for use in components subjected to high mechanical and thermal loads in downsized, energy-efficient and low-emission engines of the future.
The KIT researchers, along with their colleagues at Bosch, presented the process in a recent paper published in HTM - Journal of Heat Treatment and Materials.
Tohoku U team produces rare-earth-free high quality Fe-Ni magnet with simple industrial technology
November 22, 2015
Researchers from Tohoku University in Japan have succeeded in producing a completely rare-earth free high-quality Fe-Ni magnet. The team, led by Professor Akihiro Makino as principal investigator is supported by a MEXT (Ministry of Education, Culture, Sports, Science and Technology, Japan) project entitled, “Ultra-low Core Loss Magnetic Material Technology Area,” under the framework of the “Tohoku Innovative Materials Technology Initiatives for Reconstruction.”
Currently high quality magnets, which are used in various applications such as automobiles, household appliances, medical equipment etc. are made up of rare earth elements such as Sm (samarium), Nd (neodymium) and Dy (dysprosium). Importing rare earth elements is costly, and has become “too political,” the researchers said, making it increasingly difficult for Japan to maintain industrial superiority and competitiveness in the production of energy-saving technologies for next generation of electrical machines/devices.
EuroCarBody Award 2015 goes to the Carbon Core body of the new BMW 7 Series
November 12, 2015
The Carbon Core body structure of the new BMW 7 Series has been awarded the EuroCarBody Award 2015 at the 17th Global Car Body Benchmarking Conference. The body of the new BMW luxury sedans was given a rating of 41.87 out of 50 possible points—the best score ever to be obtained in this competition. The EuroCarBody Award has been announced at the annual conference of experts every year since 2002 and is regarded as a leading award for innovations in car body construction.
The Carbon Core used for the body structure is the central element of the BMW EfficientLightweight Technology that was applied particularly consistently in the development of the sixth generation of the BMW 7 Series. For the first time in a volume-production automobile, a composite of CFRP, aluminium and super high-strength steels was created which increases rigidity and stiffness in the passenger cell while at the same time significantly reducing the vehicle weight.
ORNL, industry partners using high-performance computing to develop new high-temperature aluminum alloys for engines
November 11, 2015
The Department of Energy’s Oak Ridge National Laboratory, FCA US LLC, and Nemak, a specialist in the production of high complex aluminum components for the automotive industry such as cylinder heads and engine blocks, are partnering to create lightweight powertrain materials that will help the auto industry meet the mandated target of 54.5 mpg (4.3 l/100 km) by 2025. Using high-performance computing, ORNL researchers are modeling the atomic structure of new alloys to select the best candidates for physical experimentation.
The ORNL-led project is part of a new initiative from DOE’s Vehicle Technologies Office to develop such new high-performance alloys. Ford, General Motors and FCA US are collaborating with national laboratories, universities and the casting industry to develop an affordable, 300 ˚C-capable high-strength cast aluminum alloy.
Vaporized Foil Actuator Welding technique from OSU uses 80% less energy and delivers bonds 50% stronger; joining dissimilar materials
October 30, 2015
Engineers at The Ohio State University have developed a new welding technique—Vaporized Foil Actuator Welding (VFAW)—that consumes 80% less energy than a common welding technique, yet creates bonds that are 50% stronger. The new technique could have a significant impact on the auto industry, which is poised to offer new cars which combine traditional heavy steel parts with lighter, alternative metals to reduce vehicle weight.
Glenn Daehn, professor of materials science and engineering at Ohio State, who helped develop the new technique, explained the new process in a keynote address at the recent Materials Science & Technology 2015 meeting. The Materials Science & Engineering annual meeting is organized by the American Ceramic Society, the Association for Iron & Steel Technology, ASM International, and the Minerals, Metals & Materials Society.
Acura provides more technical detail on NSX sports hybrid AWD powertrain, body
October 28, 2015
Acura unveiled the production model of the next-generation NSX at the North American International Auto Show (NAIAS) this past January (earlier post), and now has provided more technical detail on the high-performance hybrid sports car and its new Sport Hybrid-AWD power unit.
At the core of this new hybrid power unit is a bespoke, mid-mounted twin-turbocharged, 75-degree 3.5-liter DOHC V6 engine with dry sump lubrication, mated to an all-new 9-speed dual clutch transmission (9DCT) and Direct-Drive Motor. This is augmented by the front Twin Motor Unit (TMU) driving the front wheels. The NSX Sport Hybrid power unit offers exceptional horsepower and torque with a broad powerband for tremendous throttle response and acceleration. Total system peak output is estimated at 573 horsepower—500 horsepower from the gasoline engine and 73 horsepower from the front TMU.
New flexible MOF for enhanced adsorbed natural gas storage on vehicles
October 27, 2015
An international team of researchers led by a group at the University of California, Berkeley has developed a flexible metal-organic framework (MOF) material for enhanced adsorption and desorption of natural gas (CH4). The material, described in a paper in the journal Nature, could bolster the development of on-board adsorbed natural gas (ANG) systems that don’t require the high pressures or cold temperatures of today’s compressed or liquefied natural gas vehicles.
The “flexibility” is the result of a reversible phase transition. The iron and cobalt compounds Fe(bdp) and Co(bdp) (bdp2− = 1,4-benzenedipyrazolate) undergo a structural phase transition in response to specific methane (CH4) pressures, resulting in adsorption and desorption isotherms that feature a sharp step. Such behavior enables greater storage capacities than have been achieved for classical adsorbents, the team found, while also reducing the amount of heat released during adsorption and the impact of cooling during desorption.
DOE issues RFI on advanced thermal insulation for cold/cryogenic compressed gas on-board fuel storage
October 21, 2015
The US Department of Energy’s (DOE) Fuel Cell Technologies Office (FCTO) has issued a request for information (RFI) (DE-FOA-0001420) on advanced thermal insulation for sub-ambient temperature alternative fuel onboard storage systems. Alternative fuels could include hydrogen or natural gas stored onboard the vehicle at sub-ambient temperatures as a compressed gas, liquefied gas or adsorbed onto a porous material.
DOE is requesting information on how to maintain vacuum stability of systems; use of advanced composites within the systems; and accelerated test methods to determine performance and applicability of materials and systems for long-term cold and cryogenic based alternative fuel storage systems for onboard vehicle applications.
Berkeley Lab findings should bolster future application of black phosphorous nanoribbons in electronic, optoelectronic and thermoelectric devices
October 19, 2015
A team led by a group of researchers at the US Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) has experimentally confirmed strong in-plane anisotropy—i.e., directional dependence—in thermal conductivity, up to a factor of two, along the zigzag and armchair directions of single-crystal black phosphorous nanoribbons.
This new experimental revelation about black phosphorus nanoribbons should facilitate the future application of this highly promising material to electronic, optoelectronic and thermoelectric devices.
Argonne study finds lightweight material substitution increases vehicle-cycle GHGs, but results in total life-cycle benefit
October 12, 2015
A team at Argonne National Laboratory has taken a closer look at vehicle-cycle (all processes related to vehicle manufacturing) and vehicle total life-cycle (vehicle-cycle plus fuel cycle—i.e., the use phase) impacts of substituting lightweight materials into vehicles.
In a study published in the ACS journal Environmental Science & Technology, they reported that while material substitution can reduce vehicle weight, it often increases vehicle-cycle greenhouse gas emissions GHGs—for example, replacing steel with wrought aluminum, carbon fiber reinforced plastic (CRFP), or magnesium increases the vehicle-cycle GHGs. However, lifetime fuel economy benefits often outweigh the vehicle-cycle, resulting in a net total life-cycle GHG benefit, they found. This is the case for steel replaced by wrought aluminum in all assumed cases, and for CFRP and magnesium except for high substitution ratio and low fuel reduction value.
GM planning to “own” the customer relationship beyond the vehicle; autonomous Volts, car sharing and fuel cells
October 01, 2015
General Motors CEO Mary Barra and her leadership team outlined the company’s plans to capitalize on the future of personal mobility by owning the customer relationship beyond the vehicle, building upon nearly two decades of connectivity leadership.
GM also said it plans to strengthen its core business through global growth initiatives and an aggressive product launch cadence, while continuing to focus on driving cost efficiencies. As a result, the company expects to increase its earnings per share and generate significant shareholder value. The company shared its plans with investors during a conference at its Milford Proving Ground.
WPI team develops process to recover rare earth elements from discarded motors of electric and hybrid vehicles
In an effort to help develop a sustainable domestic supply of rare earth elements and lessen US dependence on China for materials that are vital to the production of electronics, wind turbines, and many other technologies, two researchers at Worcester Polytechnic Institute (WPI) have developed a method of extracting rare earths from the drive units and motors of discarded electric and hybrid cars.
The process offers a recovery rate of more than 80%. While heat treatment is required for processing, all other steps can be performed at room temperature, thus resulting in a process designed for energy efficiency. Overall, the established process applies green chemistry principles for designing a hydrometallurgical process.
Alcoa splitting into two companies; expecting 2.4x increase in automotive revenues to $1.8B in 2018
September 28, 2015
The Board of Directors of Alcoa has unanimously approved a plan to split the lightweight metals leader into two independent, publicly-traded companies. The globally competitive Upstream Company will comprise five business units that today make up Global Primary Products: Bauxite, Alumina, Aluminum, Casting and Energy.
The Value-Add Company will include Global Rolled Products, Engineered Products and Solutions, and Transportation and Construction Solutions. The transaction is expected to be completed in the second half of 2016. At that point Alcoa shareholders will own all of the outstanding shares of both the Upstream and Value-Add Companies. The separation is intended to qualify as a tax-free transaction to Alcoa shareholders for US federal income tax purposes.
DOE awards nearly $55M to advance fuel efficient vehicle technologies in support of EV Everywhere and SuperTruck
September 18, 2015
The US Department of Energy (DOE) is awarding nearly $55 million for 24 projects to develop and deploy advanced vehicle technologies, supporting the Energy Department’s EV Everywhere Grand Challenge to make plug-in electric vehicles as affordable to own and operate as today’s gasoline-powered vehicles by 2022.
Through the Advanced Vehicle Power Technology Alliance with the Energy Department, the Department of the Army is contributing an additional $2.26 million in co-funding to support projects focused on battery modeling technologies and computational fluid dynamics.
New Mahle piston ring coating for high-output GTDI engines; chromium nitride using high-velocity oxygen fuel process
September 16, 2015
Mahle has developed a new thermal spray coating for modern high-output direct-injection turbocharged gasoline engines (GTDI). Under development since 2011 at Mahle’s thermal spray development labs in Michigan, the new process initially was designed for high-output GTDI engines currently in production by two US domestic automakers. The market for high-output turbocharged engines is expected to achieve a market share of 30% or more by 2020.
The new top ring coating, also referred to as MSC312, uses chromium nitride applied through a high-velocity oxygen fuel (HVOF) thermal spray process. MSC312 improves upon the scuff-and-wear capabilities of Mahle’s MSC385 chrome carbide HVOF coating because of the chromium nitride composition.
SLAC’s new electron camera visualizes ripples in 2-D material; support for future solar cells, electronics and catalysts
September 10, 2015
New research led by scientists from the Department of Energy’s SLAC National Accelerator Laboratory and Stanford University reveals how individual atoms move in trillionths of a second to form wrinkles on a three-atom-thick material. Visualized by a new “electron camera,” one of the world’s speediest, this unprecedented level of detail could guide researchers in the development of efficient solar cells, fast and flexible electronics and high-performance chemical catalysts.
As described in a paper published in the ACS journal in Nano Letters, the study was made possible with SLAC’s instrument for ultrafast electron diffraction (UED), which uses energetic electrons to take snapshots of atoms and molecules on timescales as fast as 100 quadrillionths of a second.
Federal-Mogul Powertrain develops new high strength aluminium alloy material for automotive diesel pistons
September 03, 2015
Federal-Mogul Powertrain has developed a new premium diesel piston aluminium alloy: DuraForm-G91. In benchmarking tests, the new alloy—which will be on display at the IAA show later this month—provides between three and five times the component life of established as-cast materials in modern, highly loaded, diesel engines. The increased strength of the new material also supports higher mechanical loads, allowing engines to operate at higher specific power and more efficiently.
The enhanced alloy properties facilitate piston designs with a lower compression height and reduced mass. The resulting benefits of less reciprocating mass and smaller, lighter cylinder blocks contribute to vehicle CO2 emissions reduction.
GWU team develops low-cost, high-yield one-pot synthesis of carbon nanofibers from atmospheric CO2
August 21, 2015
A team led by Dr. Stuart Licht at The George Washington University in Washington, DC has developed a low-cost, high-yield and scalable process for the electrolytic conversion of atmospheric CO2 dissolved in molten carbonates into carbon nanofibers (CNFs.) The conversion of CO2 → CCNF + O2 can be driven by efficient solar, as well as conventional, energy at inexpensive steel or nickel electrodes.
The structure is tuned by controlling the electrolysis conditions, such as the addition of trace transition metals to act as CNF nucleation sites; the addition of zinc as an initiator; and the control of current density. An open access paper on their work is published in the ACS journal Nano Letters; the work was also presented at ACS’ 250th National Meeting & Exposition this week in Boston.
Novelis introducing high-strength 7000-series aluminum alloys for automotive industry
August 18, 2015
Novelis is introducing the Advanz 7000-series of high-strength aluminum alloys designed for safety-critical components of vehicle structures. Two to three times stronger than any automotive aluminum used in high volumes today, Novelis Advanz 7000-series products can be used to manufacture components such as bumper systems, crash ring components and door intrusion beams.
Very high strength 7000-series aluminum alloys have been in development for and in use in aerospace applications for decades, said Duane Bendzinski, Novelis Global Director of Technology, Automotive. Novelis has been looking at ways to make the alloys more useful and specific for automotive applications, he said.
Lawrence Livermore National Laboratory and Autodesk partner on next-generation 3D printed materials; generative design
Researchers from Lawrence Livermore National Laboratory (LLNL) and Autodesk are partnering to explore how design software can accelerate innovation for three-dimensional printing of advanced materials. Under an 18-month Cooperative Research and Development Agreement (CRADA), LLNL will use Autodesk software for generative design as it studies how new material microstructures, arranged in complex configurations and printed with additive manufacturing techniques, will produce objects with physical properties that were never before possible.
In the project, LLNL researchers will bring to bear several key technologies, such as additive manufacturing, material modeling and architected design (arranging materials at the micro and nanoscale through computational design).
NSF funds new center for advanced 2-D coatings; energy conversion and storage
August 13, 2015
A new NSF-funded Industry/University Collaborative Research Center (I/UCRC) at Penn State and Rice University will study the design and development of advanced coatings based on two-dimensional (2D) layered materials to solve fundamental scientific and technological challenges that include: corrosion, oxidation and abrasion, friction and wear, energy storage and harvesting, and the large-scale synthesis and deposition of novel multifunctional coatings.
The Center for Atomically Thin Multifunctional Coatings, (ATOMIC), is one of more than 80 Industry/University Cooperative Research Program centers established by the National Science Foundation (NSF) to encourage scientific collaboration between academia and industry. It is the only NSF center dedicated to the development of advanced 2-D coatings.
DOE Critical Materials Institute rare-earth recycling invention licensed to US Rare Earths
August 11, 2015
A new technology developed by the US Department of Energy’s Critical Materials Institute (CMI) that aids in the recycling, recovery and extraction of rare earth minerals has been licensed to US Rare Earths, Inc. The membrane solvent extraction system, invented by CMI partners Oak Ridge and Idaho national laboratories, is the first commercially licensed technology developed through the CMI.
The technology uses a combination of hollow fiber membranes, organic solvents and neutral extractants selectively to recover rare-earth elements such as neodymium, dysprosium and praseodymium. These elements have a key function in permanent magnets used in cars, cell phones, hard disk drives, computers and electric motors.
Ford working with OSU on sustainable alternative rubber sources for non-tire vehicle applications
August 06, 2015
While there are a number of efforts underway exploring the use of sustainable, natural rubber alternatives for use in tires (earlier post, earlier post, earlier post), cars use a great deal of rubber for non-tire applications as well; the Ford Fiesta, for example, contains about 3 kg of the material, excluding the tires.
Ford Motor Company is thus investigating alternative sustainable sources of rubber for automotive use in these non-tire applications. The company is working closely with The Ohio State University’s Ohio Agricultural Research and Development Center’s (OARDC’s) Program of Excellence in Natural Rubber Alternatives (PENRA) on researching the use of latex from guayule and Russian dandelion root in applications such as the car’s interior (cup holders), floormats, suspension bushings, engine mounts and so on, said Janice Tardiff, Elastomer Technical Expert at Ford.
Purdue team discovery could reduce energy required to machine annealed metals by >50%
July 28, 2015
Researchers at Purdue University have discovered a previously unknown type of metal deformation—sinuous flow—and a potentially simple method to suppress it. The results, reported in a paper in the Proceedings of the National Academy of Sciences (PNAS), could lead to more efficient machining and other manufacturing advances by significantly reducing the force and energy required to process metals by more than 50%.
Annealing is a heat-treatment process used to soften metals for machining. Counterintuitively, however, annealed metals are surprisingly difficult to cut, the Purdue team noted, involving high forces and an unusually thick “chip.” The conventional explanation for this anomaly has used a model of smooth plastic flow with uniform shear to describe material removal by chip formation. In their study, the Purdue team showed that the phenomenon is actually the result of a fundamentally different collective deformation mode: sinuous flow. Using in situ imaging, they found that chip formation occurs via large-amplitude folding, triggered by surface undulations of a characteristic size.
GM using Continental Structural Plastics’ TCA Ultra Lite in Corvette for 20 lb weight savings
July 22, 2015
Continental Structural Plastics (CSP), a global provider of lightweight composite solutions, announced that its Tough Class A (TCA) Ultra Lite material, introduced in September 2014, is now in production on the 2016 Chevrolet Corvette. The use of TCA Ultra Lite, a Class A body panel material, results in a 20 lb (9 kg) weight savings on the Stingray Coupe model. This is the first production use of CSP’s Ultra Lite advanced composite.
Ultra Lite technology uses treated glass bubbles to replace some of the CaCO3 (calcium carbonate) filler, allowing the resin to adhere to the matrix and increase the interfacial strength between the bubble and the resin. This is a patented treatment technology that results in a more robust resin mix that makes molded parts more resistant to handling damage, and prevents the micro-cracks that cause paint pops, pits and blistering. The treated bubbles also help with paint adhesion and bonding characteristics.
NIST calculates H2 pipeline can cost up to 68% more than nat gas pipeline; proposes code change to reduce cost
July 20, 2015
Pipelines to carry hydrogen cost more than other gas pipelines because of the measures required to combat the damage hydrogen does to steel’s mechanical properties (e.g., hydrogen embrittlement, HE) over time. Researchers at the National Institute of Standards and Technology (NIST) have now calculated that hydrogen-specific steel pipelines can cost as much as 68% more than natural gas pipelines, depending on pipe diameter and operating pressure. By contrast, a widely used cost model suggests a cost penalty of only about 10%.
However, according to the new NIST study, hydrogen transport costs could be reduced for most pipeline sizes and pressures by modifying industry codes to allow the use of a higher-strength grade of steel alloy without requiring thicker pipe walls.
China Zhongwang and Brilliance Bus partner to develop all-aluminum new energy public buses
China Zhongwang Holdings Limited, the second largest industrial aluminum extrusion product developer and manufacturer in the world and the biggest one in Asia, has successfully designed, manufactured and developed all-aluminum new energy electric buses for Brilliance Bus (Dalian) Company Limited. This co-operation marks China Zhongwang’s inauguration as the first and only aluminum processing enterprise in China to have the capability of undertaking both the design and manufacturing of all-aluminum new energy public buses.
The frame and body of this new public bus model use aluminum alloy as the key material. Its weight is reduced by 40% compared to its steel counterparts. Aluminium-bodied vehicles are more durable, corrosion resistant and have better vibration absorption capabilities. The lighter auto bodies increase the vehicles’ driving range, thereby conserving energy and reducing operating costs.
Syntactic foam composite for lightweight yet strong materials; bending strength for automotive applications
July 17, 2015
A team of researchers reports success in pioneering tests of a layered material with a lightweight metal matrix syntactic foam core that holds significant potential for automobiles, trains, ships, and other applications requiring lightweight structural components that retain their strength even when bent or compressed. (Syntactic foams are materials with pre-formed hollow spheres as a main constituent. “Syntactic” refers to the “ordered structure” provided by the hollow spheres.)
The research team of Nikhil Gupta, a NYU School of Engineering associate professor in the Department of Mechanical and Aerospace Engineering, working with the Toledo, Ohio, company Deep Springs Technology and the US Army Research Laboratory, published their findings in Materials Science and Engineering: A.
Ford’s first mass-produced carbon fiber wheels
July 12, 2015
To source the new lightweight track-capable carbon fiber wheels that are standard on the new Shelby GT350R Mustang, Ford partnered with Australia-based Carbon Revolution. Carbon Revolution first began delivering composite wheels in 2004 for Formula SAE campaigns. The company now is producing its “CR-9” wheel series in limited numbers for Porsche, BMW M3, Audi R8, Lamborghini and McLaren MP4-12C within Europe, Japan and North America. Ford, however, wanted more of a mass-production solution.
The one-piece carbon fiber wheels for the Mustang weigh nearly half that of an equivalent aluminum wheel (18 pounds versus 33 pounds), and handling and acceleration performance see serious benefits. The wheels also provide a reduction in rotational inertia of more than 40%, which positively impacts acceleration and braking performance. The wheels are so light, the springs and MagneRide dampers had to be recalibrated because the suspension can respond considerably faster to road inputs.
BMW Group and NTU Singapore launch US$965K electromobility research program; Electromobility in Asia and Smart Materials
July 01, 2015
BMW Group and Nanyang Technological University (NTU Singapore) launched a new electromobility research program, involving the all-electric BMW i3 and plug-in hybrid sports car BMW i8. This new research program will be conducted at the Future Mobility Research Lab located on the NTU campus, which is the BMW Group’s first joint lab in Southeast Asia.
Both parties will be injecting a combined S$1.3 million (US$965,000) to drive the new research projects, on top of the initial S$5.5 million (US$4.1 million) funding allocated to the joint lab in 2013. The new research program will focus on two new areas, Electromobility in Asia and also Smart Materials. This is in addition to the original three research topics on which the joint lab is already working: Advanced Battery; Driver Enhancement; and Intelligent Mobility.
Toho Tenax’s prepreg helps to cut 1.1MW Tajima Rimac electric racer’s weight
June 22, 2015
Teijin Limited announced that carbon fiber sheet pre-impregnated with matrix resin, or prepreg, made by Toho Tenax Co., Ltd., the core company of the Teijin Group’s carbon fibers and composites business, is used in the lightweight body of a new 1.1 MW electric racecar operated by Team APEV with Monster Sport. The Tajima Rimac E-Runner Concept_One—driven by Tajima CEO Nobuhiro “Monster” Tajima—will race in the Electric Modified Division in the Pikes Peak International Hill Climb from June 22 to 28.
The racer, developed by Rimac Automobili in collaboration with Monster Sport and Team APEV, is based on an aluminum space frame covered with the carbon fiber composite body panels. A 57 kWh Rimac battery pack powers four Rimac permanent magnet synchronous motors, delivering combined maximum output of 1,100 kW (1,475 hp) and 1,500 N·m (1,106 lb-ft) of torque.
Oak Ridge Lab, Hyundai Motor collaborating through new R&D agreement
June 09, 2015
Hyundai Motor Company and the Department of Energy’s Oak Ridge National Laboratory (ORNL) have signed an agreement intended to strengthen the automaker’s US research and development portfolio. The MOU is an expression of intent and does not create a legally binding obligation, nor does it commit funds from either party.
Hyundai Motor Company and its affiliate Kia Motors Corp. will be identifying and providing R&D needs of the automotive industry; providing feedback and evaluation technology concepts; consulting with ORNL on R&D topics related to the industry; and developing potential Hyundai-sponsored projects to be carried out under separate, legally binding agreements.
Ricardo supporting Detroit Materials in commercialization of innovative lightweight steels
June 04, 2015
Ricardo Strategic Consulting, the global management consulting subsidiary of Ricardo plc, is providing support to start-up Detroit Materials (DM) for strategy and supply chain development to assist in the commercialization of its ultra-high performance structural materials into the automotive, truck and transportation sectors in support of structural lightweighting initiatives.
Detroit Materials has developed extremely strong, castable low-alloy steel. The DM steel offers the performance advantages of exotic-alloy steels (1300 MPa UTS, 16% elongation) with the ability to cast thin wall sections (3mm wall) and complex geometries at comparable cost per performance to ADI (Austempered Ductile Irons) and GJS ductile irons.
Stanford team develops new ultrahigh surface area 3D porous graphitic carbon material for improved energy storage
June 01, 2015
Stanford University scientists have created a new ultrahigh surface area three-dimensional porous graphitic carbon material that significantly boosts the performance of energy-storage technologies. Their results are presented in an open access paper published in the journal ACS Central Science.
The multivalent cross-linker and rigid conjugated framework help to maintain micro- and mesoporous structures, while promoting graphitization during carbonization and chemical activation. The design results in a class of hierarchically porous graphitic (HPG) carbons at temperature as low as 800 °C with record-high surface area (4,073 m2 g–1); large pore volume (2.26 cm–3), and hierarchical pore architecture. The maximum surface area achieved with conventional activated carbon is about 3,000 m2 g–1
Researchers develop high-speed friction stir welding technique for aluminum joining at high volume production speeds
May 24, 2015
In partnership with General Motors, Alcoa and TWB Company LLC, researchers from the Department of Energy’s Pacific Northwest National Laboratory have developed a high-speed friction stir welding (FSW) process (earlier post) to join aluminum sheets of varying thicknesses—a key to producing auto parts that are light yet retain strength where it’s most needed—at speeds required for high volume production. The PNNL-developed process is ten times faster than current FSW techniques, representing production speeds that, for the first time, meet high-volume assembly requirements. The advancement is reported in an open-access paper in JOM, the member journal of The Minerals, Metals & Materials Society.
To create door frames, hoods and other auto parts, sheets of metal are welded together end-to-end into a “tailor-welded blank” (TWB) which is then cut into appropriate sizes before being stamped into the final shape. This process allows a high degree of customization. For example, a thicker gauge of metal can be used on one side of a car part, where extra strength is needed, joined via a weld to a thinner gauge on the side where it’s not.
Sandia researchers demonstrate thermoelectric behavior in a MOF
May 20, 2015
Sandia National Laboratories researchers, with colleagues at the University of Virginia, have made the first measurements of thermoelectric behavior by a nanoporous metal-organic framework (MOF), a development that could lead to an entirely new class of materials for such applications as cooling computer chips and cameras and energy harvesting. “These results introduce MOFs as a new class of thermoelectric materials that can be tailored and optimized,” said Sandia physicist François Léonard.
This work, published in a paper in the journal Advanced Materials, builds on previous research in which the Sandia team realized electrical conductivity in MOFs by infiltrating the pores with a molecule known as tetracyanoquinodimethan (TCNQ), as described in a 2013 paper in Science (Talin et al. 2013). (Earlier post.)
Cooper Tire completes work on $1.5M DOE project to develop fuel efficient tires, exceeding targets
May 04, 2015
Cooper Tire & Rubber Company completed work under a $1.5-million government grant to develop advanced tire technology aimed at increasing vehicle fuel efficiency. The grant, awarded by the US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy, called for Cooper to develop technology for light vehicle tires that delivered a minimum 3% improvement in vehicle fuel efficiency while lowering average tire weight by at least 20%, all without sacrificing performance.
Cooper was successful in developing technologies that exceeded the project’s goals, delivering an average fuel efficiency improvement of 5.5% and weight reduction ranging from 23% to 37% in concept tires.