Morphology and magnetic properties of Sm2Co7/α-Fe nanocomposite magnets produced by high energy ball milling and spark plasma sintering - 文章详情页

作者：

收录：

EI SCIE CSCD

摘要：

In　this　article,　the　Sm2Co7/α-Fe　nanocomposite　magnets　were　prepared　by　high　energy　ball　milling　and　spark　plasma　sintering　method.　The　effect　of　soft　phase　content　on　the　magnetic　properties　was　studied.　Up　to　30　wt%　α-Fe　was　added　into　Sm2Co7　matrix　without　the　decrease　of　remanence.　Optimal　energy　product　(BH)max　of　9.2MGOe　was　obtained　with　20　wt%　α-Fe.　TEM　observation　shows　that　the　grain　size　of　α-Fe　is　20–50　nm　which　ensures　a　good　coupling　effect　between　soft　and　hard　phase.　One　more　thing　needs　to　be　mentioned　is　that　there　exists　inter-diffusion　between　Sm–Co　phase　and　α-Fe　phase.　Moreover,　our　results　can　also　illustrate　that　the　Sm2Co7/α-Fe　nanocomposite　magnets　are　able　to　acquire　better　magnetic　properties　than　the　SmCo5/α-Fe　magnets　prepared　by　the　same　process　due　to　the　large　domain　width　of　Sm2Co7　phase.　©　2020　Chinese　Society　of　Rare　Earths

关键词：

Ball milling Binary alloys Cobalt alloys Cobalt metallography Iron alloys Iron metallography Magnetic properties Magnetism Magnetoplasma Magnets Milling (machining) Morphology Nanocomposites Samarium alloys Spark plasma sintering

作者机构：

[ 1 ] [Zhuge, Yitong]Key Laboratory of Advanced Functional Materials, Ministry of Education of China, College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Li, Yuqing]Key Laboratory of Advanced Functional Materials, Ministry of Education of China, College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Xu, Xiaochang]Key Laboratory of Advanced Functional Materials, Ministry of Education of China, College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Zhang, Dongtao]Key Laboratory of Advanced Functional Materials, Ministry of Education of China, College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Zhang, Hongguo]Key Laboratory of Advanced Functional Materials, Ministry of Education of China, College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Liu, Weiqiang]Key Laboratory of Advanced Functional Materials, Ministry of Education of China, College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Yue, Ming]Key Laboratory of Advanced Functional Materials, Ministry of Education of China, College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息：

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

电子邮件地址：

yueming@bjut.edu.cn

查看成果更多字段

成果类型
所属机构

所有年份指定年份从至