Stoichiometry and mechanical properties of Mo3Si

被引：107

作者：

Rosales, I ^{[1
]}

Schneibel, JH ^{[1
]}

机构：

[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA

来源：

INTERMETALLICS | 2000年 / 8卷 / 08期

关键词：

molybdenum silicides; fracture toughness; yield stress;

D O I：

10.1016/S0966-9795(00)00058-3

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：

The A15 phase Mo3Si is an important constituent of a new class of silicides based on Mo-Si-B. In this research it will be shown that, contrary to published results, single-phase Mo3Si is slightly off-stoichiometric. In addition, it remains single phase in a small composition range. Its room temperature fracture toughness is on the order of 3 MPa m(1/2). The compressive strength at 1400 degrees C in argon decreases with decreasing strain rate and increasing Si concentration. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：885 / 889

页数：5

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