Some Considerations of Nonideal Transformation?Zone Profile
Journal
Journal of the American Ceramic Society
Journal Volume
71
Journal Issue
6
Pages
494-497
Date Issued
1988
Author(s)
Abstract
The nonideal transformation?zone profile, in which the volume fraction of transformed particles decreases with the increase in the lateral distance from crack surfaces, is considered for the stress?induced phase transformation in ceramics containing zirconia. It is shown that one source of this nonideal transformation?zone profile can be the size distribution of the transforming particles/grains. Then, an equation for toughening due to the existence of such a nonideal transformationzone profile is derived. In calculating the toughness, it is shown that the uncertainty in determining the transformationzone size, which can occur by attempts to fit it to an ideal zone profile, can be avoided by using the present approach. Copyright ? 1988, Wiley Blackwell. All rights reserved
SDGs
Type
journal article