Multi-step Sintering Method Study of HP Y-SiAlON Ceramics

摘要：

　　Multi-step hot pressing sintering was adopted to prepare Y-SiAlON (Y0.4Si9.6Al2.4O1.2N14.8) at 1950℃ for 60 min under 25 Mpa in nitrogen atmosphere,and the microstructure was studied.The phase assemblages,microstructures and densification of the sintered samples were discussed in detail.In order to contrast to multi-step sintering,one step sintering also was adopted.The results reveal that single-phase α-SiAlON with elongated grain pattern is formed in the multi-step sintering specimens,because of holding at low temperature in multi-step sintering is helpful to reduce the kinetics of crystal growth,the mount of elongated grain in multi-step sintering samples is more than that of in one step sintering ones.

关键词： SiAlON Multi-step sintering Temperature Hot pressing

作者: Xu Jiujun Shan Yingchun Li Jiangtao Song Qinji

作者单位: Electromechanics and Materials Engineering College,Dalian Maritime University,Dalian 116026,China Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100080,China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 908-909

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）