Influence of different oxides on the formation of Si2N2O from SiO2 and Si3N4

被引：52

作者：

Bergman, Bill ^{[1
]}

Huang, Heping ^{[1
]}

机构：

[1] Royal Inst of Technology, Sweden

来源：

Journal of the European Ceramic Society | 1990年 / 6卷 / 01期

关键词：

Silica - Silicon Nitride--Manufacture;

D O I：

10.1016/0955-2219(90)90028-E

中图分类号：

学科分类号：

摘要：

Si2N2O powder has been produced by reacting SiO2 and Si3N4 in the presence of a liquid phase obtained by the addition of Al2O3, Y2O3, and MgO. The phase changes occurring during the reaction have been quantified by X-ray diffraction. The reaction has been studied at different temperatures and periods of time. The grain size of the starting materials has a large influence on the conversion to Si2N2O, and, by using a fine-grained SiO2, a substantial conversion to Si2N2O was obtained within 1 h at 1500°C for the Y2O3-containing material.

引用

页码：3 / 8