Nanostructured bulk polycrystal La6 cathode prepared by in-situ spark plasma sintering - 文章详情页

作者：

Zhou, Shenlin (Zhou, Shenlin.) | Liu, Danmin (Liu, Danmin.) (学者：刘丹敏) | Zhang, Jiuxin (Zhang, Jiuxin.) | Jin, Shuai (Jin, Shuai.)

收录：

EI Scopus PKU CSCD

摘要：

In　order　to　obtain　LaB6　cathode　with　high-purity　and　excellent　properties,　La　and　LaH2　nanopowders　were　prepared　by　hydrogen　arc　plasma　method,　and　then　La-LaH2　and　B　nanopowders　were　sintered　to　fabricate　the　high-purity　LaB6　polycrystal　nano-bulk　cathode　by　in　situ　SPS　(Spark　Plasma　Sintering)　in　a　oxygen　free　system.　The　effects　of　sintering　temperature　and　pressure　on　the　phases,　microstructure　and　properties　of　the　nano-bulk　were　systematically　studied.　The　results　show　that　the　single-phase　LaB6　was　formed　in　the　nano　bulk　with　a　high　purity　of　99.867%　and　an　average　crystal　size　of　about　120　nm.　The　relative　densities　of　nano-bulk　LaB6　is　up　to　99.2%,　and　its　hardness　is　up　to　17.4　GPa,　the　bend　strength　of　the　polycrystal　LaB6　is　as　high　as　around　245.6　MPa,　the　theoretical　bend　strength　value　of　single　crystal.

关键词：

Cathodes Nanostructured materials Polycrystals Single crystals Spark plasma sintering

作者机构：

[ 1 ] [Zhou, Shenlin]The Key Laboratory of Advanced Functional Materials, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Liu, Danmin]The Key Laboratory of Advanced Functional Materials, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Zhang, Jiuxin]The Key Laboratory of Advanced Functional Materials, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Jin, Shuai]The Key Laboratory of Advanced Functional Materials, Beijing University of Technology, Beijing 100022, China

通讯作者信息：

电子邮件地址：

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