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http://dx.doi.org/10.3795/KSME-A.2015.39.10.955

Determining Mechanical Properties of ZrO2 Composite Ceramics by Weibull Statistical Analysis  

Kim, Seon Jin (Dept. of Mechanical Design Engineering, Pukyong Nat'l Univ.)
Kim, Dae Sik (TFT, Hi Air Korea, Co., Ltd.)
Nam, Ki Woo (Dept. of Materials Science and Engineering, Pukyong Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.39, no.10, 2015 , pp. 955-962 More about this Journal
Abstract
The Vickers test can be used for all types of materials, and it has one of the widest scales among hardness tests. The hardness may be considered as a probability variable when evaluating the mechanical properties of materials. In this study, we investigate the statistical properties of the bending strength and Vickers hardness in $ZrO_2$ monolithic and $ZrO_2/SiC$ composites depending on the amount of $TiO_2$ additives. The bending strength and Vickers hardness were found to agree well with the Weibull probability distribution. We evaluate the scale parameter and shape parameter in as-received $ZrO_2$ and $ZrO_2/SiC/TiO_2$ ceramics, as well as their heat treated ceramics. We also evaluate the parameters in accordance with the increase in in the indentation load.
Keywords
Weibull Statistical Analysis; Bending Strength; Vickers Hardness; $ZrO_2$ Monolithic Ceramics; $ZrO_2$ Composite Ceramics; $TiO_2$;
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Times Cited By KSCI : 4  (Citation Analysis)
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