SYNTHESIS AND CHARACTERIZATION OF BETA'-SIALON WHISKERS PREPARED FROM THE CARBOTHERMAL REACTION OF SILICA FUME AND ALPHA-AL2O3

被引：8

作者：

CHEN, ZX

机构：

[1] East China University of Chemical Technology, Shanghai, 200237

来源：

JOURNAL OF MATERIALS SCIENCE | 1993年 / 28卷 / 22期

关键词：

D O I：

10.1007/BF00365014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Beta'-sialon whiskers were synthesized from silica fume and alpha-alumina via the carbothermal reduction reaction under nitrogen flow. The growth of whiskers was found to be conducted by the vapour-solid-liquid crystal growth mechanism involving SiO, FeCl3 and other vapour species. SEM observation and EDAX reveal that the changing morphology of whiskers: branching, varying size, shape and growing direction, is a result of variations in vapour composition.

引用

页码：6021 / 6025

页数：5

共 16 条

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