Preparation and characterization of porous Si3N4 ceramics prepared by compression molding and slip casting methods

被引:0
作者
Fangli Yu
Huanrui Wang
Yu Bai
Jianfeng Yang
机构
[1] Xi’an Jiaotong University,State Key Laboratory for Mechanical Behaviour of Materials
来源
Bulletin of Materials Science | 2010年 / 33卷
关键词
Porous Si; N; ceramics; preparation; microstructure; mechanical properties; gas permeability;
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中图分类号
学科分类号
摘要
Porous silicon nitride (Si3N4) ceramics were fabricated by compression molding and slip casting methods using petroleum coke as pore forming agent, and Y2O3-Al2O3 as sintering additives. Microstructure, mechanical properties and gas permeability of porous Si3N4 ceramics were investigated. The mechanical properties and microstructure of porous Si3N4 ceramics prepared by compression molding were better than those which were prepared by slip casting method, whereas slip casting method is suitable for the preparation of porous Si3N4 ceramics with higher porosity and excellent gas permeability.
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页码:619 / 624
页数:5
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