Oxidation behavior of molybdenum silicides and their composites

被引：94

作者：

Natesan, K

Deevi, SC

机构：

[1] Argonne Natl Lab, Div Energy Technol, Argonne, IL 60439 USA

[2] Chrysalis Technol Inc, Richmond, VA 23234 USA

来源：

INTERMETALLICS | 2000年 / 8卷 / 9-11期

关键词：

molybdenum silicides; composites; oxidation; phase identification; hot isostatic pressing; electron microscopy; scanning;

D O I：

10.1016/S0966-9795(00)00060-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A key materials issue associated with the future of high-temperature structural silicides is the resistance of these materials to oxidation at low temperatures. Oxidation tests were conducted on Mo-based silicides over a wide temperature range to evaluate the effects of alloy composition and temperature on the protective scaring characteristics and pesting regime for the materials. The study included Mo5Si3 alloys that contained several concentrations of B. In addition, oxidation characteristics of MOSi2-Si3N4 composites that contained 20-80 vol.% Si3N4 were evaluated at 500-1400 degreesC. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1147 / 1158

页数：12

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