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Analysis of size dependence of ceramic fiber and whisker strength
Zhu, YT; Blumenthal, WR; Taylor, ST; Lowe, TC; Zhou, BL
Corresponding AuthorZhu, YT()
1997-06-01
Source PublicationJOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN0002-7820
Volume80Issue:6Pages:1447-1452
AbstractThe 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.
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:A1997XF13000015
PublisherAMER CERAMIC SOC
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/126828
Collection中国科学院金属研究所
Corresponding AuthorZhu, YT
AffiliationCHINESE ACAD SCI,MET RES INST,SHENYANG,PEOPLES R CHINA
Recommended Citation
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.
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