Microstructure and mechanical properties of ZrB2-SiC-ZrO2f ceramic

被引：45
作者：
Lin Jia [1 ]
Zhang Xinghong [1 ]
Wang Zhi [2 ]
Han Wenbo [1 ]
机构：
[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Adv Composites Special, Harbin 150001, Peoples R China
[2] Dalian Univ Technol, Sch Aeronaut & Astronaut, Fac Vehicle Engn & Mech, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China
来源：
SCRIPTA MATERIALIA | 2011年 / 64卷 / 09期
基金：
中国博士后科学基金;
关键词：
Ceramics; Microstructure; Mechanical properties; Composites; TEMPERATURE CERAMICS; COMPOSITES; ZIRCONIUM; FIBER;
D O I：
10.1016/j.scriptamat.2011.01.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
ZrB2-SiC-ZrO2f ceramic was fabricated by hot-pressing at 1850 degrees C for 1 h under a uniaxial load of 30 MPa in vacuum. The ZrB2-SiC-ZrO2f ceramic thus produced showed excellent fracture toughness due to the addition of ZrO2 fiber. The increase in toughness was attributed mainly to the addition of the ZrO2 fiber, which could enhance fiber pull-out, crack bridging and crack branching. In addition, the stress-induced transformation toughening was also considered to be main reason for the improvement in toughness. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：872 / 875
页数：4
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