宇航材料工艺2011，Vol.41Issue(2)：68-71,4.
凝胶注模成型多孔Si3N4陶瓷及其性能
Fabrication and Properties of Porous Si3N4 Ceramic by Gel-Casting Technique
摘要
Abstract
In order to meet the requirement for wave-transparent materials, the porous Si3N4 materials with high strength and low dielectric constant were fabricated by gel-casting method. The microstructure, dielectric properties,wave transmittance and flexural strength were investigated. The results show that the flexural strength of porous Si3N4 is up to 50 MPa with dielectric constant of 2. 3 to 2. 8. At the same time, the materials have steady high temperature dielectric properties and good wave-transparent properties.关键词
多孔Si3N4天线罩/凝胶注模/高温介电性能/透波材料Key words
Porous Si3N4 radome/ Gel-casting/ High temperature dielectric property/ Wave-transparent materials引用本文复制引用
张健,王红洁,范锦鹏,冯志海,陈聪慧..凝胶注模成型多孔Si3N4陶瓷及其性能[J].宇航材料工艺,2011,41(2):68-71,4.基金项目
武器装备预先研究项目(51312020105)、国家自然科学基金(90816018) （51312020105）
