Ultrafine WC-Ni-SiCw Cemented Carbides Fabricated by Spark Plasma Sintering

摘要：

　　Ultrafine WC-Ni cemented carbides with addition of SiC whisker (SiCw) were fabricated by spark plasma sintering.The microstructure and mechanical properties of the fabricated cemented carbides were investigated.It was found that the addition of SiC whisker had no obvious influence on the phase compositions of the cemented carbides,but the mean grain size of the cemented carbides decreased as the addition fraction of SiC whisker increased.The fabricated WC-Ni cemented carbides presented the highest hardness when 0.75 wt% SiC whisker was added.However,the addition of SiC whisker was detrimental to the flexural strength of the cemented carbides because of the formation of inhomogeneous microstructure in the WC-Ni cemented carbides.

关键词： WC-Ni cemented carbide SiC whisker Spark plasma sintering Mechanical properties

作者: Huiyong Rong Zhijian Peng Xiaoyong Ren Ying Peng Chengbiao Wang Zhiqiang Fu Longhao Qi Hezhuo Miao

作者单位: School of Engineering and Technology,China University of Geosciences,Beijing 100083,P.R.China State Key Laboratory of New Ceramics and Fine Processing,Tsinghua University,Beijing 100084,P.R.Chin

会议类型: 国际会议

会议名称: The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))

会议地点: 厦门

会议语种:英文

页码: 924-927

在线出版日期: 2011-11-04（万方平台首次上网日期，不代表论文的发表时间）