Correlation between fracture toughness, work of fracture and fractal dimensions of Alumina-mullite-zirconia composites

Sérgio Francisco dos Santos; José de Anchieta Rodrigues

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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Correlation between fracture toughness, work of fracture and fractal dimensions of Alumina-mullite-zirconia composites

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Author(s):	Sérgio Francisco dos Santos ^[1] ; José de Anchieta Rodrigues ^[2] Total Authors: 2
Affiliation:	^[1] University of São Carlos. Department of Materials Engineering - Brasil ^[2] University of São Carlos. Department of Materials Engineering - Brasil Total Affiliations: 2
Document type:	Journal article
Source:	MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 6, n. 2, p. 219-226, 2003-06-00.
Abstract
The purpose of this work is to show the correlation between the fractal dimension, D, and mechanical properties such as work of fracture, gammawof, and fracture toughness, K Ic. Alumina-mullite-zirconia composites were characterized by the slit-island method, SIM, to obtain values of D and its fractional part, D. The fracture surface roughness was also evaluated using a cyclic voltametric method. It will be shown that there is a positive experimental dependency of gammawof on D and that there is not an evident correlation between K Ic and D*. (AU)

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