Fabrication and magnetocaloric properties of Mn1.2Fe0.8P0.75Ge0.25 compound prepared by spark plasma sintering - 文章详情页

作者：

Zhang, Lei (Zhang, Lei.) | Liu, Dan-Min (Liu, Dan-Min.) (学者：刘丹敏) | Deng, Xiao-Jun (Deng, Xiao-Jun.) | Yue, Ming (Yue, Ming.) (学者：岳明) | Zhang, Jiu-Xing (Zhang, Jiu-Xing.)

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EI Scopus PKU CSCD

摘要：

Mn1.2Fe0.8P0.75Ge0.25　compound　had　been　prepared　by　mechanical　alloying　and　subsequent　spark　plasma　sintering　(SPS)　technique.　XRD　and　VSM　were　used　to　analyse　the　phase　composition　and　MCE.　The　results　show　that　the　sintered　bulk　sample　has　a　hexagonal　Fe2P-type　crystal　structure,　the　thermal　hysteresis　of　M-T　is　about　4K.　The　Curie　temperature　TC　is　292K,　and　the　maximum　magnetic　entropy　change　of　the　compound　reaches　to　18J/(kg·K)　and　adiabatic　temperature　change　ΔTad　is　4K　in　a　field　change　from　0　to　1.5T.　The　properties　of　this　compound　meet　room　temperature　magneto-caloric　requirements.

关键词：

Spark plasma sintering Electric sparks Plasmas Entropy Manganese Mechanical alloying Mechanical properties Germanium Curie temperature Crystal structure

作者机构：

[ 1 ] [Zhang, Lei]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Liu, Dan-Min]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Deng, Xiao-Jun]Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Yue, Ming]Key Laboratory of Advanced Functional Materials, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Zhang, Jiu-Xing]Key Laboratory of Advanced Functional Materials, Beijing University of Technology, Beijing 100124, China

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