Environmental arguments aside, the weak link in the electric car story might be a soft metal called neodymium. You may have heard of Nd:YAG lasers. The Nd stands for neodymium. Another major use is in permanent magnets, such as those used in electric cars. China controls most neodymium production and is now restricting exports and boosting tariffs. As a result of China’s actions and demand from electric car makers, neodymium prices are now close to $90/kg, up from $19.12 in 2009.
Efforts to find new global sources for the metal are accelerating. A Japanese joint venture will look for neodymium in Vietnam. An article in the Denver Post says there is a new “gold rush” for rare earth metals such as neodymium in Colorado and other Western states.
And not surprisingly, engineers are at work trying to improve the performance of induction motors in which magnetism is created by applying an electrical charge. The problem with induction motors is their poor efficiency and their large size compared to motors using permanent magnets. Continental AG, the largest noncaptive electric motor supplier for autos, is also working on alternative technical solutions.
A new report from the National Institute of Standards and Technology (NIST) makes a start on developing control schemes, process measurements, and modeling and simulation methods for powder bed fusion additive manufacturing.
Although bio-based polymers face challenges from petroleum-based polymers, in certain markets they can displace the petro-based incumbents. Here are six new bio-based and renewable plastics for a variety of applications.
BASF has developed tools and initiatives to help engineers use more of its renewable materials in their designs, more effectively, as well as to build parts using them with more predictable performance.
Just in time for Earth Day, chemicals leader Bayer MaterialScience reported from the UTECH Europe 2015 polyurethane show on programs and applications using its materials to help reduce energy usage. The company also gave an update on its CO2-based PU as that eco-friendly material comes closer to production.
A slew of announcements about new materials and design concepts for transportation have come out of several trade shows focusing on plastics, aircraft interiors, heavy trucks, and automotive engineering. A few more announcements have come independent of any trade shows, maybe just because it's spring.
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