Statistical analysis of fracture toughness of SiC ceramics determined by Vickers indentation method

Ćurković, Lidija and Rede, Vera and Lalić, Marijo (2011) Statistical analysis of fracture toughness of SiC ceramics determined by Vickers indentation method. = Statistical analysis of fracture toughness of SiC ceramics determined by Vickers indentation method. International Journal of Microstructure and Materials Properties, 6 (5). pp. 359-365. ISSN 1741-8410. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. . .

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Abstract

In this paper fracture toughness, K IC, of CVD SiC ceramics was determined by measuring the crack lengths associate with a Vickers indentation. It is well known that the measured fracture of brittle ceramics shows large variability. Therefore, the probabilistic characteristics of fracture toughness were analysed by a two-parameter Weibull distribution function, with scale parameter, K0, and the Weibull modulus, m. These parameters were determined by the linear regression method for K IC data measured at load of 9.81, 29.43, 49.01 and 98.1 N, respectively. It was found that the measured fracture toughness follow a Weibull distribution. © 2011 Inderscience Enterprises Ltd.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): Brittle ceramics; Crack length; CVD SiC; Linear regression methods; Probabilistic characteristics; Scale parameter; SiC ceramics; Vickers indentation; Vickers indentation method; Weibull; Weibull modulus; Brittle fracture; Fracture toughness; Linear regression; Silicon carbide; Weibull distribution; Ceramic materials
Subjects: TECHNICAL SCIENCE
Divisions: 1000 Department of Materials > 1010 Chair of Materials and Tribology
Indexed in Web of Science: No
Indexed in Current Contents: No
Citations SCOPUS: 0 (23.4.2015.)
Date Deposited: 23 Apr 2015 09:28
Last Modified: 23 Apr 2015 09:28
URI: http://repozitorij.fsb.hr/id/eprint/3772

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