REACTION OF A MOLTEN MIXTURE OF TITANIUM, ALUMINUM, AND SILICON-OXIDES WITH HOT-PRESSED SILICON-NITRIDE

被引：0

作者：

PETROVSKII, VY

YUPKO, VL

机构：

[1] Ukrainian Academy of Sciences, Institute of Materials Science Problems, Kieve

来源：

POWDER METALLURGY AND METAL CERAMICS | 1993年 / 32卷 / 05期

关键词：

D O I：

10.1007/BF00561263

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 formation temperature of a liquid phase and the solidification temperature of a molten mixture of Al2O3 - TiO2 - SiO2 oxides on a silicon nitride substrate are determined. Data are obtained for the change in kinetics. It is established that the intensity of interaction of molten Al2O3 - TiO2 - SiO2 with silicon nitride depends on the oxide mixture composition. With heating there are two possibilities: improvement and worsening of Si3N4 crystallite wetting with a liquid phase as well as solidification of the melt. The temperature range where a liquid phase exists for actual materials is about 15-degrees-C, which markedly worsens the process of structure formation with Si3N4 during sintering.

引用

页码：409 / 413

页数：5