Fabrication polycrystalline DyB6 bulk by spark plasma sintering - 文章详情页

作者：

Wei, Yong-Feng (Wei, Yong-Feng.) | Zhang, Jiu-Xing (Zhang, Jiu-Xing.) | Bao, Li-Hong (Bao, Li-Hong.) | Zhou, Shen-Lin (Zhou, Shen-Lin.) | Zhang, Ning (Zhang, Ning.)

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EI Scopus PKU CSCD

摘要：

The　DyHx　nano-powders　were　prepared　by　hydrogen　arc　plasma　method,　and　then　the　mixed　of　DyHx　nano-powders　and　micron　boron　were　sintered　by　spark　plasma　sintering　(SPS)　method　to　fabricate　high-properties　polycrystalline　DyB6　bulk.　The　influence　of　SPS　sintering　temperature　on　the　microstructure　and　property　was　investigated.　It　is　shown　that　the　pure　phase　DyB6　bulk　can　be　easily　fabricated　by　SPS　when　the　sintering　temperature　is　1275°C.　The　values　of　density,　Vickers　hardness　and　bend　strength　respectively　reach　5.191g/cm3,　23.32GPa　and　112.8MPa　when　the　sample　was　sintered　at　1425°C　and　60MPa.　Thermionic　emission　measurement　of　the　sample　was　performed.　The　emission　current　density　of　the　DyB6　is　3.6A/cm2　at　1933K.

关键词：

Boron Boron compounds Electric sparks Hydrogen Plasmas Powders Spark plasma sintering Thermionic emission Vickers hardness

作者机构：

[ 1 ] [Wei, Yong-Feng]The Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Zhang, Jiu-Xing]The Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Bao, Li-Hong]The Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Zhou, Shen-Lin]The Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Zhang, Ning]The Key Laboratory of Advanced Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

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