Nanoparticle Approach to the Formation of Sm2Fe17N3 Hard Magnetic Particles
CHEMISTRY LETTERS(2019)
摘要
The synthesis of Sm2Fe17N3 magnetic particles has been vigorously studied because of their superior magnetic properties. Here, we developed a novel method to form Sm2Fe17N3 magnetic particles with relatively high coercivity (1.3 T), which were formed from Fe3O4-SmOx core-shell nanoparticles using a reduction-diffusion process, followed by in-situ nitridation. This method would provide not only smaller Sm2Fe17N3 particles with higher coercivity but also other rare-earth containing materials.
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关键词
Permanent magnet,Reduction-diffusion,Core-shell nanoparticle
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