Characterization of porous silicon nitride ceramics using bentonite as binder and sintering additive

被引：18
作者：
Jiang, Guang-Peng [1 ]
Yang, Jian-Feng [1 ]
Gao, Ji-Qiang [1 ]
Niihara, Koichi [2 ]
机构：
[1] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Peoples R China
[2] Nagaoka Univ Technol, Extreme Energy Dens Res Inst, Niigata 9402188, Japan
来源：
MATERIALS CHARACTERIZATION | 2009年 / 60卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Porous ceramics; Silicon nitride; Binder; Microstructure; Bending test; EXTRUSION;
D O I：
10.1016/j.matchar.2008.11.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of bentonite addition on extrusion behavior, open porosity, microstructure, and mechanical properties was investigated. The results showed that paste with an appropriate amount of bentonite had a good extrusion behavior. The resultant microstructures consisted of rod-like silicon nitride grains and some intergranular amorphous phase. Furthermore, superior mechanical properties were obtained. Using cheap but effective bentonite as inorganic binder as well as sintering aid is a promising eco-friendly preparation route for cost-effective porous silicon nitride ceramics. (C) 2008 Elsevier Inc. All rights reserved.
引用
收藏
页码：456 / 460
页数：5
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