Micromechanics modeling of creep fracture of zirconium diboride-silicon carbide composites at 1400-1700 °C

被引：17

作者：

Yu, C. H. ^{[1
]}

Bird, M. W. ^{[2
]}

Huang, C. W. ^{[3
]}

Chen, C. S. ^{[1
]}

Gao, Y. F. ^{[4
]}

White, K. W. ^{[2
]}

Hsueh, C. H. ^{[5
,6
]}

机构：

[1] Natl Taiwan Univ, Dept Civil Engn, Taipei 10764, Taiwan

[2] Univ Houston, Dept Mech Engn, Houston, TX 77004 USA

[3] Chung Yuan Christian Univ, Dept Civil Engn, Chungli, Taiwan

[4] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA

[5] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[6] Natl Taiwan Univ, Dept Mat Sci & Engn, Taipei 10617, Taiwan

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2014年 / 34卷 / 16期

基金：

美国国家科学基金会;

关键词：

Creep fracture; Finite element analysis; Micromechanics; Cavitation; Grain boundary sliding; MECHANICAL-PROPERTIES; DIFFUSIVE CAVITATION; ZRB2-SIC COMPOSITE; GRAIN; MICROSTRUCTURE; CERAMICS; STRENGTH; DEFORMATION; OXIDATION; BEHAVIOR;

D O I：

10.1016/j.jeurceramsoc.2014.07.020

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The creep deformation of the ultra-high temperature ceramic composite ZrB2-20%SiC at temperatures from 1400 to 1700 degrees C was studied by a micromechanical mode in which the real microstructure was adopted in finite element simulations. Based on the experiment results of the change of activation energy with respect to the temperature, a mechanism shift from diffusional creep-control for temperatures below 1500 degrees C to grain boundary sliding-control for temperatures above 1500 degrees C was concluded from simulations. Also, the simulation results revealed the accommodation of grain rotation and grain boundary sliding by grain boundary cavitation for creep at temperatures above 1500 degrees C which was in agreement with experimental observations. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：4145 / 4155

页数：11

共 43 条

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Zhu, SJ
Peng, LM
Zhou, Q
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Kucharová, K
Cadek, J
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 268 (1-2): : 236 - 245
[42] Fracture toughness (K1C) and tensile properties of as-cast and age-hardened aluminium (6063)-silicon carbide particulate composites
Alaneme, K. K.
Aluko, A. O.
SCIENTIA IRANICA, 2012, 19 (04) : 992 - 996
[43] Creep behaviour of aluminium strengthened by fine aluminium carbide particles and reinforced by silicon carbide particulates -: DS Al-SiC/Al4C3 composites (vol A268, pg 236, 1999)
Zhu, SJ
Peng, LM
Zhou, Q
Ma, ZY
Kucharová, K
Cadek, J
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 282 (1-2): : 271 - +

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