TiCN-based cermets strengthened with SiC nano-whiskers by spark plasma sintering
TiCN-based cermets with different amounts of SiC nano-whiskers were prepared by spark plasma sintering.The microstructure and mechanical properties of the as-prepared cermets were investigated.X-ray diffraction revealed that there were no SiC peaks detected,turning out some peaks of new carbide and silicate hard phases.Scanning electron microscopy indicated that there were more and more pores in the cermets with increasing amount of SiC whisker added,and the fracture mechanism of the cermets was mainly inter-granular fracture.With increasing addition amount of nano-SiC whisker,the hardness and flexural strength of the cermets increased first and decreased then,presenting the highest hardness (2170 HV) and flexural strength (750 MPa),respectively,when the addition content of nano-whiskers is 2.5 wt%.
Spark plasma sintering TiCN cermet SiC nano-whisker
Ying Peng Zhijian Peng Xiaoyong Ren Huiyong Rong Chengbiao Wang Zhiqiang Fu Longhao Qi Hezhuo Miao
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
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
932-935
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）