Effect of the formation of SiC whisker on the properties of Al2O3-ZrO2-C materials

被引：5

作者：

Gu, Huazhi ^{[1
]}

Shao, Rongdan

Zhang, Wenjie

Wang, Houzhi

Yang, Kaibao

Yu, Shuzhong

机构：

[1] Wuhan Univ Sci & Technol, Hubei Prov Key Lab High Temp Ceram & Refractory, Wuhan 430081, Peoples R China

[2] Maanshan Iron & Steel Grp Corp, Magang Refractory Co Ltd, Maanshan 243000, Peoples R China

来源：

High-Performance Ceramics IV, Pts 1-3 | 2007年 / 336-338卷

关键词：

Al2O3-ZrO2-C material; SiC whisker; mechanical strength; growth mechanism;

D O I：

10.4028/www.scientific.net/KEM.336-338.1263

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：

SiC whisker was produced through the reaction between carbon and silicon powders during the sintering of Al2O3-ZrO2-C materials. The thermodynamic conditions and growth mechanism were discussed. The results showed that rod-shaped and dumbbell-shaped SiC whiskers are formed, respectively. The main composition of the beads in dumbbell-shaped whisker is SiOx with a small amount of Na and Ca, but the rods are SiC. In addition, the dumbbell-shaped SiC whisker contributed less than straight rod-shaped SiC whisker to improving the physical properties of Al2O3-ZrO2-C materials.

引用

页码：1263 / 1265

页数：3