Preparation of Si80Ge20B0.6 alloy by spark plasma sintering and their thermoelectric properties - 文章详情页

作者：

Zhao, Ran (Zhao, Ran.) | Shen, Li (Shen, Li.) | Zhang, Xin (Zhang, Xin.) | Lu, Qing-Mei (Lu, Qing-Mei.) | Guo, Fu (Guo, Fu.) (学者：郭福)

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EI Scopus PKU CSCD

摘要：

Single-phase　Si80Ge20B0.6　alloy　bulks　were　prepared　by　high-energy　ball　milling　followed　by　spark　plasma　sintering　method.　The　thermoelectric　properties　were　measured　from　400　to　900K.　The　carriers　were　scattered　by　grain　boundaries　in　the　alloys　prepared　by　powder　metallurgy.　The　bulk　specimens　heated　for　a　longer　period　of　time　during　SPS　had　higher　electrical　conductivity.　The　thermal　conductivity　values　for　all　specimens　were　between　2.7　and　4.5　W/(m·K).　The　figure　of　merit　ZT　of　the　holding　for　9　min　specimen　reached　0.47　at　900K.

关键词：

Alloys Ball milling Electric conductivity Electric sparks Germanium Grain boundaries Mechanical alloying Powder metallurgy Spark plasma sintering Thermoelectric equipment Thermoelectricity

作者机构：

[ 1 ] [Zhao, Ran]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Shen, Li]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Zhang, Xin]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 4 ] [Lu, Qing-Mei]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
[ 5 ] [Guo, Fu]College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China

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