Spark plasma sintering Nd2Fe14B/ α -Fe bulk exchange-spring magnets - 文章详情页

作者：

Yue, Ming (Yue, Ming.) (学者：岳明) | Tian, Meng (Tian, Meng.) | Liu, Weiqiang (Liu, Weiqiang.) (学者：刘卫强) | Zhang, Jiuxing (Zhang, Jiuxing.)

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EI Scopus

摘要：

The　Nd2Fe14B/　α　-Fe　bulk　exchange-spring　magnets　have　been　prepared　by　spark　plasma　sintering　melt　spun　Nd　9.8Dy0.4Fe78.4Co5.6B5.8　flakes　under　different　temperatures　and　pressures.　It　was　found　that　higher　sintering　temperature　improved　the　densification　of　the　magnets,　while　deteriorated　their　magnetic　properties　simultaneously.　An　increased　compressive　pressure　can　restrain　the　grain　growth　remarkably　and　then　leads　to　better　magnetic　properties　and　higher　density　for　the　magnet　at　same　sintering　temperature.　XRD　analysis　showed　that　with　the　increase　of　sintering　pressure,　some　peaks　indicating　c-axis　texture　such　as　(006)　and　(105)　became　dominant.　As　a　result,　the　bulk　magnet　exhibited　higher　remanence　and　maximum　energy　product　than　starting　powders.　©　2005　Trans　Tech　Publications,　Switzerland.

关键词：

Crystal structure Densification Magnetic properties Magnetometers Magnets Melt spinning Microstructure Neodymium compounds Plasma applications Sintering X ray diffraction analysis

作者机构：

[ 1 ] [Yue, Ming]Key Lab. of Adv. Funct. Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Tian, Meng]Key Lab. of Adv. Funct. Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Liu, Weiqiang]Key Lab. of Adv. Funct. Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Zhang, Jiuxing]Key Lab. of Adv. Funct. Materials, Ministry of Education, Beijing University of Technology, Beijing 100022, China

通讯作者信息：

电子邮件地址：

yueming@bjut.edu.cn

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