Synthesis of a new lean rare earth permanent magnetic compound superior to Nd2Fe14B
Tuesday, October 21, 2014 - 09:01
in Physics & Chemistry
A research group led by Dr. Kazuhiro Hono at the National Institute for Materials Science (NIMS) in Tsukuba, Japan, synthesized a new magnetic compound, which requires a lesser amount of rare earth element than the currently used neodymium iron boron compound. The ratio of neodymium, iron and nitrogen in the new compound, NdFe12N, is 1:12:1. Its neodymium concentration is 17% compared to 27% for the neodymium iron boron compound known as Nd2Fe14B, the main component used in the strongest permanent magnets. Furthermore, the intrinsic hard magnetic properties were found to be superior to those of Nd2Fe14B. The result of this research will be published in Scripta Materialia on October 20, 2014.