Simulation of temperature distribution during spark plasma sintering to synthesize WC-Co cermets - 文章详情页

作者：

Liu, Xue-Mei (Liu, Xue-Mei.) | Song, Xiao-Yan (Song, Xiao-Yan.) (学者：宋晓艳) | Zhang, Jiu-Xing (Zhang, Jiu-Xing.) | Zhao, Shi-Xian (Zhao, Shi-Xian.) | Wei, Jun (Wei, Jun.)

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摘要：

By　using　the　WC-Co　powders　as　the　sintering　material,　based　on　physical　parameters　of　graphite　and　sintering　samples　measured　by　experiments,　the　temperature　distribution　during　SPS　process　to　synthesize　WC-Co　cermets　is　simulated　by　finite　element　method.　The　results　show　that　there　is　a　greatly　inhomogeneous　temperature　distribution　in　the　SPS　system.　The　highest　temperature　zone　lies　in　the　sample　at　lower　sintering　temperature,　and　moves　forward　to　the　punch　with　increasing　sintering　temperature.　The　temperature　of　the　center　of　die　is　lower　than　that　of　the　center　of　sample　and　the　change　of　its　difference　is　in　accordance　with　the　change　of　heating　rate.　It　is　concluded　that　the　heat　transfers　from　the　punch　to　the　die.　The　prediction　results　show　a　good　agreement　with　the　experimental　measurements.

关键词：

Cermets Cobalt alloys Computer simulation Finite element method Graphite Heating rate Heat transfer Spark plasma sintering Temperature distribution Tungsten carbide

作者机构：

[ 1 ] [Liu, Xue-Mei]Key Laboratory of New Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 2 ] [Song, Xiao-Yan]Key Laboratory of New Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 3 ] [Zhang, Jiu-Xing]Key Laboratory of New Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 4 ] [Zhao, Shi-Xian]Key Laboratory of New Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
[ 5 ] [Wei, Jun]Key Laboratory of New Functional Materials, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China

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