SOME CONSIDERATIONS OF DETERMINATION OF RESIDUAL-STRESSES AND YOUNGS MODULI IN CERAMIC COATINGS

被引：20

作者：

HSUEH, CH

机构：

[1] Metals and Ceramics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1991年 / 74卷 / 07期

关键词：

COATINGS; SUBSTRATES; STRESS; YOUNGS MODULUS; BENDING;

D O I：

10.1111/j.1151-2916.1991.tb07153.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：

Residual stresses that develop during cooling of a ceramic coating/substrate strip are considered. Bending occurs because of an asymmetric stress distribution in the strip. In the presence of residual stresses, strains induced on the surfaces of the coating and the substrate are analyzed when (1) the coating-substrate interface exhibits a transition from a bonded to a debonded state, and (2) a bending moment is applied to straighten the strip. The result shows that both the residual stress and Young's modulus in the ceramic coating can be determined from the surface strains due to either interfacial debonding or strip straightening, Young's modulus of the substrate, and the thicknesses of the coating and the substrate.

引用

页码：1646 / 1649

页数：4

共 8 条

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