ZrB2-MoSi2 composites toughened by elongated ZrB2 grains via reactive hot pressing

被引：52

作者：

Wu, Wen-Wen ^{[1
,2
]}

Wang, Zhuo ^{[1
,2
]}

Zhang, Guo-Jun ^{[1
]}

Kan, Yan-Mei ^{[1
]}

Wang, Pei-Ling ^{[1
]}

机构：

[1] Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

SCRIPTA MATERIALIA | 2009年 / 61卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Borides; Toughness; Grain growth; Reactive hot pressing; HIGH-TEMPERATURE CERAMICS; MECHANICAL-PROPERTIES; SILICON-NITRIDE; OXIDATION; CARBIDE; MICROSTRUCTURE; ZIRCONIUM;

D O I：

10.1016/j.scriptamat.2009.04.013

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

ZrB2-20 vol.% MoSi2 Composites with elongated ZrB2 grains were prepared by reactive hot pressing using Zr, Si, B and Mo as raw materials. The ductile behavior of MoSi2 at high temperature helped the rod-like ZrB2 grains align under the applied pressure during sintering, resulting in a partly textured composite. The anisotropic growth of ZrB2 grains improved the toughness of the composite remarkably. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：316 / 319

页数：4

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