A model to determine the interfacial fracture toughness for chipped coatings

被引：32

作者：

Malzbender, J ^{[1
]}

de With, G ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Lab Solid State & Mat Chem, NL-5600 MB Eindhoven, Netherlands

来源：

SURFACE & COATINGS TECHNOLOGY | 2002年 / 154卷 / 01期

关键词：

interfacial fracture toughness; adhesion; indentation;

D O I：

10.1016/S0257-8972(01)01708-X

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A model is developed to estimate the interfacial fracture energy and interfacial fracture toughness of coated materials on the basis of the buckling load of an axially compressed plate of changing width. The model takes into account the residual stress and the elastic properties of the substrate and is applied to the spalling of coatings during scratch or indentation testing. On the basis of this model the fracture toughness of different organic-inorganic hybrid coatings is determined. The values obtained are a factor 3 to 4 lower than determined previously using a model that takes neither the real shape nor the buckling stress into account. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：21 / 26

页数：6

共 30 条

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[3]

[Anonymous], 1997, THIN FILMS ON GLASS

[4]

[Anonymous], ADV APPL MECH