Fast Fabrication and Wear Behavior of Alumina-nickel Composites
Alumina-nickel (20 wt%) composites were sintered by spark plasma sintering process.The influence of sintering temperature (1400-1550 ℃) on densification and grain size of the composites was investigated (heating rate is 200 ℃/min,sintering time is 5 min).Wear behavior of samples obtained by SPS was evaluated in a dry condition with reciprocate ball-on-disk testing machine.The results show that the relative density and alumina grain sizes increase with the increasing sintering temperature,and the fine-grained structure (alumina size controlled in 1-2 μm) could obtained at a temperature of 1400 ℃; the alumina grain size increase to 5 μm at a temperature higher than 1500 ℃.The fine-grained structure samples exhibit higher wear resistance.
Alumina wear ceramics
Fancheng Meng Xiaolei Zhang Ying Zhang Cheng Liu Yabo Dong Zhonging Tian Weijiu Huang
Department of Materials,Chongqing University of Technology,Chongqing,400050,china Zhoushan Institutes of Calibration and Testing for Qualitative and Technical Supervision,Zhoushan 31
国际会议
桂林
英文
94-97
2012-07-16（万方平台首次上网日期，不代表论文的发表时间）