Quantifying the Accuracy of Fractographic Strength Estimates in Silicate Glasses

doi:10.1016/j.jeurceramsoc.2018.04.011

	Quantifying the Accuracy of Fractographic Strength Estimates in Silicate Glasses
	Ma, Lingyue 1; Dugnani, Roberto 1; Zednik, Ricardo 2
刊名	Journal of the European Ceramic Society
	2018
卷号	38 期号:10 页码:3643-3649
ISSN号	09552219
DOI	10.1016/j.jeurceramsoc.2018.04.011
英文摘要	Fractographers’ qualitative measurements of the mirror radii are routinely used to estimate the fracture strength of brittle materials. Different imaging methods, magnifications, and observers’ subjective length-estimates are expected to affect the strength predictions, but their relative influence was never quantified prior to this work. In this manuscript, 31 aluminosilicate glass plates were fractured by four-point bending (strength range: 71-117 MPa) and eight observers independently estimated the mirror radii per ASTM Standard C1678-10. The effects of magnifications, imaging methods, and observers were then quantified. It was found that these effects account for up to 6% of the estimate's error (i.e., the estimate bias) on the average. Additionally, random variations in the range of ±3% to ±4% are expected. Furthermore, it was shown that using the fracture surface's profilometry scans, aided by the analytical knowledge of the shape of the mirror-mist boundary, could eliminate the bias and significantly improve the accuracy of predictions. © 2018 Elsevier Ltd
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25234]
专题	中国科学院上海硅酸盐研究所
作者单位	1.University of Michigan, Shanghai Jiao Tong University Joint Institute, UM-SJTU Joint Institute, 800 Dongchuan Road, Shanghai; 200240, China; 2.École de Technologie Supérieure, Université du Québec, Montréal, Canada
推荐引用方式 GB/T 7714	Ma, Lingyue,Dugnani, Roberto,Zednik, Ricardo. Quantifying the Accuracy of Fractographic Strength Estimates in Silicate Glasses[J]. Journal of the European Ceramic Society,2018,38(10):3643-3649.
APA	Ma, Lingyue,Dugnani, Roberto,&Zednik, Ricardo.(2018).Quantifying the Accuracy of Fractographic Strength Estimates in Silicate Glasses.Journal of the European Ceramic Society,38(10),3643-3649.
MLA	Ma, Lingyue,et al."Quantifying the Accuracy of Fractographic Strength Estimates in Silicate Glasses".Journal of the European Ceramic Society 38.10(2018):3643-3649.