Microstructure, mechanical properties and oxidation behavior of Nb-Si-Al and Nb-Si-N powder compacts prepared by spark plasma sintering

被引:83
作者
Murakami, T [1 ]
Sasaki, S
Ichikawa, K
Kitahara, A
机构
[1] Natl Inst Adv Inst Sci & Technol AIST, Inst Mech Syst Engn, Tsukuba, Ibaraki 3058564, Japan
[2] AIST, Saga 8410052, Japan
关键词
silicides; various; ternary alloy systems; mechanical properties at high temperatures; oxidation; sintering;
D O I
10.1016/S0966-9795(01)00042-5
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
First tentative Nb-Si-Al and Nb-Si-N ternary phase diagrams were constructed by investigating microstructures of spark plasma sintered compacts of these systems. The microstructure, mechanical properties and oxidation behavior of compacts with some different compositions in the two systems were then examined. Nb3Si5Al2 matrix compact showed extremely good oxidation resistance at 1573 K, although the compact showed poor oxidation resistance at 1023 K. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:621 / 627
页数:7
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