CRACK SPACING IN BRITTLE FILMS ON ELASTIC SUBSTRATES

被引：176

作者：

THOULESS, MD

机构：

[1] IBM Research Division, T. J. Watson Research Center, Yorktown Heights, New York

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 07期

关键词：

cracks; films; models; separation; substrates;

D O I：

10.1111/j.1151-2916.1990.tb05290.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

An approximate, analytical solution is derived for the minimum spacing that can exist between a series of parallel cracks propagating in a thin film. The analysis is pertinent to the specific case of a film and substrate having identical elastic properties. In the absence of plasticity, only three parameters govern the minimum crack spacing. The cracks are predicted to be more closely spaced if the film stress or the film thickness is increased, or if the fracture toughness of the film is decreased. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：2144 / 2146

页数：3

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