Preparation of Silicon Nitride Porous Ceramics

摘要：

　　A Si3N4 porous ceramics with excellent strength and dielectric properties can be employed as a wave-transparent material.The Si3N4 porous ceramic contains a plurality of Si3N4 crystal grains with pores formed in grain boundary which forms a three-dimensional network structure.The properties of the Si3N4 porous ceramics was studied,the porous ceramics was prepared by different process parameters,including the pressure of cold isostatic pressing,temperature of sintering and sintering atmosphere,etc.,A high porosity (>50%),high strength (>120MPa),low dielectric properties (ε < 3.2) Si3N4 ceramic can be prepared by appropriate process parameters.

关键词： silicon nitride porous ceramics process parameter

作者: Jian Liu Kai Liu Hong-sheng Wang Fang Gao Rong Liao

作者单位: Shandong Research & Design Institute of Industrial Ceramics,Zibo 255031,China Air Force Military Representative Office of Shandong Province,Jinan 250023

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: 824-827

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）