High energy product of isotropic bulk Sm-Co/α-Fe(Co) nanocomposite magnet with multiple hard phases and nanoscale grains

Shuo Li,Longfei Ma,Jinkui Fan,Jianping Yang,Qiang Zheng,Baoru Bian,Jian Zhang,Juan Du

Journal of Materials Science & Technology（2021）

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摘要

Bulk nanocomposite magnets with grain size of 14 nm of hard phase and 17 nm of soft phase were obtained. All the magnets fabricated from 475 to 550 °C had a high (BH)max of 20 MGOe or larger values, and the one fabricated at 525 °C had the highest value of 23.6 MGOe.

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关键词

Hard/soft phase nanocomposite,Isotropic bulk,Magnetic properties,Grain size,Phase constitution

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