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http://dx.doi.org/10.3795/KSME-A.2015.39.9.901

Weibull Statistical Analysis on Mechanical Properties in ZrO2 with SiC Additive  

Nam, Ki Woo (Dept. of Materials Science and Engineering, Pukyong Nat'l Univ.)
Kim, Seon Jin (Dept. of Mechanical Design Engineering, Pukyong Nat'l Univ.)
Kim, Dae Sik (TFT, Hi Air Korea, Co., Ltd.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.39, no.9, 2015 , pp. 901-907 More about this Journal
Abstract
The Vickers hardness test is a common method used to characterize the hardness of ceramic materials. However, the hardness is not a deterministic value, but is a random variable. The objective of this paper is to investigate the statistical properties of the bending strength and a set of Vickers hardness values in single $ZrO_2$ and composite $ZrO_2/SiC$ with a SiC additive. In this work, we compare the characteristic value and variation with the results based on Weibull statistical analysis. The probability distributions of the bending strength and Vickers hardness agreed relatively well with the Weibull distribution. We evaluate the scale parameter and shape parameter in asreceived $ZrO_2$ and $ZrO_2/SiC$ composite ceramics, as well as in their heat treated ceramics.
Keywords
Weibull Statistical Analysis; Bending Strength; $ZrO_2$; $ZrO_2/SiC$ Composite Ceramics; Weibull Distribution;
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Times Cited By KSCI : 3  (Citation Analysis)
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