高级检索
无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

层片状LaPO4陶瓷的力学性能与显微结构

王瑞刚; 潘伟; 蒋蒙宁; 陈健; 罗永明; 曹珍珠   

  1. 清华大学材料系新型陶瓷与精细工艺国家重点实验室 北京 100084
  • 收稿日期:2002-01-04 修回日期:2002-03-08 出版日期:2003-01-20 网络出版日期:2003-01-20

Mechanical Properties and Microstructure of Layered LaPO4 Ceramics

WANG Rui-Gang; PAN Wei; JIANG Meng-Ning; CHEN Jian; LUO Yong-Ming; CAO Zhen-Zhu   

  1. Department of Materials Science and Engineering; State Key Lab of New Ceramics and Fine Processing Tsinghua University; Beijing 100084; China
  • Received:2002-01-04 Revised:2002-03-08 Published:2003-01-20 Online:2003-01-20

PDF (PC)

1152

摘要： 利用无压、热压、放电等离子三种烧结方法制备了高密度、层片状的LaPO4陶瓷.测定、表征了三种烧结路线合成LaPO4陶瓷的致密化程度、织构行为及基本力学性能.同时,基于Al2O3和LaPO4相之间可形成弱结合界面,无压烧结制备了可用硬质合金钢钻头钻孔的40wt％Al2O3/LaPO4可加工复合材料.

关键词: LaPO4, 力学性能, 显微结构, 可加工陶瓷

Abstract: Dense and layered LaPO4 ceramics were fabricated by using pressureless sintering, hot pressing and spark plasma sintering . Densification, texture and mechanical properties of LaPO4 ceramics by different sintering routes were characterized . Based on the formation of weak interface of Al2O3 and LaPO4 phase, machinable 40wt%Al2O3/LaPO4 composite having a hardness of 6.3±0.45GPa, was fabricated and characterized by using cemented carbide drill.

Key words: LaPO4, mechanical properties, microstructure, machinable ceramics

中图分类号: