Effect of porosity on the crack pattern and residual strength of ceramics after quenching

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	Effect of porosity on the crack pattern and residual strength of ceramics after quenching
	Shao YF(邵颖峰); Du RQ(杜睿琪); Wu XF; Song F(宋凡); Xu XH(许向红); Jiang CP
刊名	JOURNAL OF MATERIALS SCIENCE
	2013-09-01
通讯作者邮箱	shaoyf@lnm.imech.ac.cn
卷号	48 期号:18 页码:6431-6436
关键词	Alumina Cracks Porosity Quenching Thermal shock Minimum potential energy principle Pore volume fractions Porous alumina Prediction-based Residual strength Strength reduction Thermal shock resistance Water-quenching
ISSN号	0022-2461
通讯作者	Shao, YF (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China.
产权排序	[Shao, Yingfeng; Du, Ruiqi; Song, Fan; Xu, Xianghong] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; [Wu, Xiaofeng; Jiang, Chiping] Beijing Univ Aeronaut & Astronaut, Solid Mech Res Ctr, Beijing 100191, Peoples R China
合作状况	国内
中文摘要	The effect of porosity on the crack characteristics of ceramics after water-quenching is studied by measuring the cracks in ceramic sheets. The result reveals that the pore volume fraction has a slight effect on the enhancement of thermal shock resistance of ceramics when the porosity ranges from 0 to 20 %, because the length and density of the long crack in porous alumina are always slightly less than that in dense alumina. This result is in agreement with the prediction based on the minimum potential energy principle using experimentally measured data. Moreover, the proportion of the strength reduction in the third regime decreases significantly with increasing porosity, because the strength of unquenched specimens decreases more rapidly than that of quenched specimens with increasing porosity. The results of this study may help to further understand the thermal shock behavior of ceramics.
学科主题	极端条件下的材料和结构
分类号	二类/Q1
收录类别	SCI ; EI
资助信息	National Natural Science Foundation of China [11102208, 91216110, 91016029, 11021262, 11061130550, 11023001]
原文出处	http://dx.doi.org/10.1007/s10853-013-7444-0
语种	英语
WOS记录号	WOS:000321285500038
公开日期	2013-09-02
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47406]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Shao YF,Du RQ,Wu XF,et al. Effect of porosity on the crack pattern and residual strength of ceramics after quenching[J]. JOURNAL OF MATERIALS SCIENCE,2013,48(18):6431-6436.
APA	邵颖峰,杜睿琪,Wu XF,宋凡,许向红,&Jiang CP.(2013).Effect of porosity on the crack pattern and residual strength of ceramics after quenching.JOURNAL OF MATERIALS SCIENCE,48(18),6431-6436.
MLA	邵颖峰,et al."Effect of porosity on the crack pattern and residual strength of ceramics after quenching".JOURNAL OF MATERIALS SCIENCE 48.18(2013):6431-6436.