Microstructure characterization of in situ synthesized porous Si2N2O ceramics using spodumene additive

被引：18
|
作者：
Dong, Xue [1 ]
Liu, Jiachen [1 ]
Du, Haiyan [1 ]
Guo, Anran [1 ]
Liu, Mengxia [1 ]
机构：
[1] Tianjin Univ, Key Lab Adv Ceram & Machining Technol, Minist Educ, Sch Mat Sci & Engn, Tianjin 300072, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2013年 / 39卷 / 04期
基金：
中国国家自然科学基金;
关键词：
A; Sintering; Ceramics; Fibers; TBA-based gel-casting; RELATIVELY HIGH-STRENGTH; SILICA CERAMICS;
D O I：
10.1016/j.ceramint.2012.10.224
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Porous Si2N2O ceramics was synthesized by the tert-butyl alcohol-based gel-casting method at a relatively low temperature using Si3N4 and SiO2 powders as the starting materials and spodumene (LiAl(SiO3)(2)) as the sintering additive. Porous Si2N2O ceramics with relative high compressive strength (10.80 MPa) and high porosity (65.5%) were successfully fabricated. The microstructure of porous Si2N2O after sintering at different sintering regimes was studied. The fibers observed in the pores can increase the compressive strength and the specific surface area of the sample. (C) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：4657 / 4662
页数：6
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