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The low thermal stability of Nd-Fe-Bpermanent magnets has been a set-back infinding wider use in areas of high tem-perature application.The research group,headed by SeniorEngineer Xie Hung-tsu of Baotou Researchinstitute of Rare Earth has developed aNd-Fe-B based magnet with service tem-perature of as high as 200℃ and a tem-perature coefficient of O.068%/℃(B/H=2).The magnets display an irreversibleflux loss of less than 10% after aging at
The low thermal stability of Nd-Fe-Bpermanent magnets has been a set-back infinding wider use in areas of high tem-perature application. The research group, headed by Senior Engineer Xie Hung-tsu of Baotou Research Institute of Rare Earth has developed a Nd- Fe-B based magnet with service tem-perature of as high as 200 ° C and a tem perature coefficient of 0.068% / ° C (B / H = 2). The magnets display an irreversible flux loss of less than 10% after aging at