Oxidation behaviors of MgAlON/Si3N4 composite at high temperature

被引：2

作者：

Zhang, HX ^{[1
]}

Huang, Y

Hong, YR

Sun, JL

Zhou, NS

机构：

[1] Tsing Hua Univ, Grad Sch Shenzhen, Shanghai 518057, Peoples R China

[2] Tsing Hua Univ, Dept Mat Sci & Engn, Shanghai 10084, Peoples R China

[3] Univ Sci & Technol Beijing, Beijing 10083, Peoples R China

来源：

HIGH-PERFORMANCE CERAMICS III, PTS 1 AND 2 | 2005年 / 280-283卷

关键词：

MgAlON/Si3N4; composite; self-healing property; oxidation behavior;

D O I：

10.4028/www.scientific.net/KEM.280-283.1335

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：

The isothermal oxidation behaviors of MgAlON/Si3N4 composite which was synthesized by pressureless nitridation reaction sintering have been investigated in flowing air at 1100degreesC, 1200degreesC and 1300degreesC respectively. The results show that the composite represents excellent self-healing property of oxidation at 1300degreesC, which might be attributed to the formation of protective silicate film with reasonable viscosity, good spreading power and very low oxygen diffusion coefficient, and to the formation of compact surface resulted from the expansion effect of forming mullite from SiO2 and Al2O3. However, the self-healing property of it is relatively poor at 1100degreesC and 1200degreesC as compared to 1300degreesC.

引用

页码：1335 / 1338

页数：4