Tuning the morphology of soft magnetic phase to optimize the microstructure of SmCo5/α-Fe nanocomposites - 文章详情页

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EI SCIE

摘要：

Keeping　a　high　proportion　of　soft　magnetic　phase　with　small　grain　size　and　uniform　distribution　of　soft　and　hard　magnetic　phase　is　the　key　factor　to　fabricate　bulk　nanocomposites.　We　report　a　novel　design　to　fabricate　high　performance　SmCo5/α-Fe　nanocomposites　by　choosing　nanoscale　α-Fe　flakes　as　raw　material　of　soft　magnetic　phase　instead　of　micron　scale　α-Fe　particles.　Microstructure　optimization,　i.e.,　fine　and　dispersive　distribution　of　α-Fe　grains　in　SmCo5　matrix,　and　high　soft　magnetic　phase　proportion　up　to　25　wt%　were　achieved　simultaneously.　As　a　consequence,　the　remanence,　intrinsic　coercivity,　and　maximum　energy　product　rise　by　13.55%,　46.99%,　and　80.03%　in　the　SmCo5/α-Fe　nanocomposites　with　20　wt%　α-Fe,　respectively.　Moreover,　a　giant　remanence　of　9.75　kG　is　achieved　in　the　SmCo5/α-Fe　nanocomposite　with　25　wt%　α-Fe　nanoflakes　content.　©　2020　Elsevier　Inc.

关键词：

Binary alloys Cobalt alloys Iron alloys Microstructure Morphology Nanocomposites Nanomagnetics Remanence Samarium alloys

作者机构：

[ 1 ] [Xu, Xiaochang]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Li, Yuqing]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Ma, Zhenhui]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Zhuge, Yitong]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Teng, Yuan]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Zhang, Yu]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Zhang, Hongguo]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing; 100124, China
[ 8 ] [Zhang, Dongtao]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing; 100124, China
[ 9 ] [Yue, Ming]Faculty of Materials and Manufacturing, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

岳明
[yue, ming]faculty of materials and manufacturing, key laboratory of advanced functional materials, ministry of education of china, beijing university of technology, beijing; 100124, china

电子邮件地址：

yueming@bjut.edu.cn

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