Analysis of size dependence of ceramic fiber and whisker strength

IMR OpenIR

	Analysis of size dependence of ceramic fiber and whisker strength
	Zhu, YT; Blumenthal, WR; Taylor, ST; Lowe, TC; Zhou, BL
通讯作者	Zhu, YT()
	1997-06-01
发表期刊	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
卷号	80 期号:6 页码:1447-1452
摘要	The strengths of ceramic fibers and whiskers have been observed to increase with decreasing fiber diameter and length, Typically, both surface flaws and volume hams exist in ceramic fibers and whiskers, which makes it impossible to characterize the strength dependence of both the diameter and the length with a single-modal Weibull distribution function, Our data also show that the single-modal Weibull distribution is inadequate to characterize the strength of fibers with varying diameters even in the case of a constant fiber length, In addition, experimental data also show that, for sapphire whiskers whose surface flaws mere removed by chemical polishing, the whisker strength has a much stronger size dependence on diameter than predicted by the single-modal Weibull function, which indicates that factors other than those characterized by the Weibull function also play a role in the strength of sapphire whiskers, In this paper, the factors affecting the strengths of ceramic fibers and whiskers are analyzed in terms of Weibull statistics, fracture mechanics, and ham size density variation with varying fiber diameters, A three-parameter modified Weibull distribution, which combines the above strength-affecting factors, is proposed to characterize both the diameter and the length dependence for ceramic fibers and whiskers with or without surface flaws, Characterization of the strength data of sapphire whiskers and Nicalon SiC fibers with varying diameters shows the validity of the modified Weibull distribution function.
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:A1997XF13000015
出版者	AMER CERAMIC SOC
引用统计	被引频次：34[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/126828
专题	中国科学院金属研究所
通讯作者	Zhu, YT
作者单位	CHINESE ACAD SCI,MET RES INST,SHENYANG,PEOPLES R CHINA
推荐引用方式 GB/T 7714	Zhu, YT,Blumenthal, WR,Taylor, ST,et al. Analysis of size dependence of ceramic fiber and whisker strength[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,1997,80(6):1447-1452.
APA	Zhu, YT,Blumenthal, WR,Taylor, ST,Lowe, TC,&Zhou, BL.(1997).Analysis of size dependence of ceramic fiber and whisker strength.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,80(6),1447-1452.
MLA	Zhu, YT,et al."Analysis of size dependence of ceramic fiber and whisker strength".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 80.6(1997):1447-1452.