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Japan Industrial Technology Research Institute ( AIST ) has developed a new technology, can produce sintering isotropic samarium iron nitrogen ( Sm-Fe-N ) based magnet, its performance with the Nd-Fe-B permanent magnet is similar to.

The technology can reduce the hybrid or electric vehicles motor on NdFeB permanent magnet NdFeB magnets containing dependent, and increasingly expensive rare earth dysprosium. According to the" International Powder Metallurgy directory" AIST report, this technique enables the Sm-Fe-N powder at 400 C curing sintering, relative density of 90% or higher.

The technique uses pulse electric current sintering process, for loading powder metal mold using current pulse, heat is generated very quickly, lasted only 1 minutes.

ZheJiang DongYang Strong Electron Co., Ltd