High-Temperature Reaction of Al2O3-Si in Reduction Atmosphere

被引：0

作者：

Zhu Hongxi ^{[1
]}

Deng Chengji ^{[1
]}

Li Junying ^{[1
]}

Bai Chen ^{[1
]}

机构：

[1] Wuhan Univ Sci & Technol, Hubei Prov Key Lab Refractories & Ceram, Minist Prov Jointly Constructed Cultivat Base, State Key Lab, Wuhan 430081, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2008年 / 37卷

关键词：

Al2O3-Si materials; Sialon; reaction process;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corundum and industrial Si buried in carbon were reacted between 1400 similar to 1600 degrees C, and SiC, O'-Sialon and SiO2 were formed at T < 1550 degrees C. The products were analyzed by XRD, and the dynamic mechanism in association to the formation of Sialon was discussed. X-Sialon formed at T > 1550 degrees C. The products of Si3N4, SiO2 and SiC were formed from the reaction between Si and N-2, or Si and CO. Si2N2O and O'-Sialon were detected for the products. The sintered temperature and the starting compositions of the raw materials has great effects on the reaction rate and phase compositions of the products.

引用

页码：130 / 133

页数：4