As part of ”Rare Metal Substitute Materials Development Project” by NEDO, Intermetallics CO.,LTD. and a research group led by Professor Satoshi Sugimoto at Graduate School of Engineering, Intermetallics CO.,LTD. and Tohoku University have successfully reduced the amount of dysprosium by 40% in NdFeB sintered magnets for HEV and EV by downsizing crystal particle size to increase coercive force.  The company has developed a technology to reduce the amount of dysprosium that is essential rare earth to produce high-efficiency magnets.

 The group will aim to achieve 250kOe for dysprosium-free magnets, and to promote mass production.

 The project has been conducted in collaboration with 8 institutes consisting of Tohoku University, Yamagata University, National Institute for Materials Science (NIMS), Japan Atomic Energy Agency (JAEA), Santoku Corporation, Intermetallics CO.,LTD., TDK Corporation and TOYOTA Motor Corporation.

 The research result was presented in NEDO on January 27, 2011, and published in the following newspapers: NIKKEI, YOMIURI, Kahoku shimpo, Nikkan Kogyo, the Chemical Daily, Nikkan Jidosha, Japan Metal Daily, Japan Metal Bulletin and FujiSankei Business i.

More information

[Contact]
New Industry Creation Hatchery Center, Tohoku University
Address: 6-6-10 Aoba Aramaki Aoba-ku Sendai, Miyagi, 980-8579, Japan
TEL: +81-22-795-4004, FAX: +81-22-795-7985