Characteristics of magnetization processes for SPS NdFeB magnet - 文章详情页

作者：

Wang, G.-P. (Wang, G.-P..) | Li, W.-B. (Li, W.-B..) | Liu, W.-Q. (Liu, W.-Q..) (学者：刘卫强) | Yue, M. (Yue, M..) (学者：岳明) | Zhang, J.-X. (Zhang, J.-X..)

收录：

Scopus PKU CSCD

摘要：

A　type　of　sintered　NdFeB　permanent　magnet　named　as　SPS　NdFeB　magnet　was　prepared　by　spark　plasma　sintering(SPS)　technique.　To　better　understand　the　magnetic　hardening　mechanism　of　SPS　NdFeB　magnets,　the　processes　of　magnetization　and　demagnetization　at　the　room　temperature　have　been　investigated　by　means　of　Vibrating　Sample　Magnetometer　(VSM).　The　results　showed　that　the　magnetization　characters　of　sample　under　a　lower　extrinsic　applied　magnetic　field　of　800　kA　·　m　-1　were　obviously　different　from　that　of　processes　applied　a　higher　external　field　of　1760kA　·　m　-1　,　in　which　the　former　can　be　termed　as　nucleation-controlled　mode　while　the　latter　as　pinning-controlled　one.　Compared　with　the　curves　in　the　processes　of　magnetization　and　demagnetization,　it　could　be　found　that　the　coercivity　of　sample　equals　its　pinning　field　of　magnetization　process.

关键词：

Demagnetization; Magnetization; SPS NdFeB

作者机构：

[ 1 ] [Wang, G.-P.]College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China
[ 2 ] [Li, W.-B.]College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China
[ 3 ] [Liu, W.-Q.]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Yue, M.]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 5 ] [Zhang, J.-X.]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China

通讯作者信息：

[Wang, G.-P.]College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China

电子邮件地址：

wgp@jxnu.edu.cn

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