Fabrication and characterization of ceramic matrix composites reinforced by in situ formation of β-silicon carbide

被引：2

作者：

Sharif, Muhammad Akhtar ^{[1
]}

Sueyoshi, Hidekazu ^{[1
]}

机构：

[1] Kagoshima Univ, Grad Sch Sci & Engn, Dept Nanostruct & Adv Mat, Kagoshima 8900065, Japan

来源：

SCRIPTA MATERIALIA | 2008年 / 58卷 / 08期

关键词：

hot isostatic pressing; CMCs; beta-SiC; hardness; fracture toughness;

D O I：

10.1016/j.scriptamat.2007.12.011

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Ceramic matrix composites with greatly improved hardness and fracture toughness due to the in situ formation of beta-SiC were fabricated. The maximum density, Vickers hardness and fracture toughness were 5.75 g cm(-3), 29.63 GPa and of 10.60 MPa m(1/2), respectively. The improvement in fracture toughness was due to not only the crack blockage or deflection by uniform dispersion of in situ formed beta-SiC, but also the phase transformation of t-m-ZrO2 accelerated by the residual stresses. (c) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：711 / 714

页数：4

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