Structural characterization of combustion synthesized MoSi2-Si3N4 composite powders and plasma sprayed MoSi2-Si3N4 composites

被引：11

作者：

Kung, H

Lu, YC

Bartlett, AH

Castro, RG

Petrovic, JJ

Shtessel, E

机构：

[1] Univ Calif Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA

[2] Exotherm Corp, Camden, NJ USA

来源：

JOURNAL OF MATERIALS RESEARCH | 1998年 / 13卷 / 06期

关键词：

D O I：

10.1557/JMR.1998.0212

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A systematic structural characterization has been conducted on combustion synthesized MoSi2-Si3N4 powders and plasma sprayed composites by transmission electron microscopy (TEM). The powders are cleaner and with little surface oxide contamination than most commercial powders. The distribution of the two phases can be tailored by modifying the synthesis conditions, which has resulted in improved retention of Si3N4 after plasma spraying. TEM studies performed on deformed composites indicate a strong link between even dispersion of second phases and enhanced dislocation plasticity in the plasma sprayed composites.

引用

页码：1522 / 1529

页数：8

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