Analysis of the initial fragmentation stage of oxide coatings on polymer substrates under biaxial tension

被引：24

作者：

Andersons, J

Leterrier, Y ^{[1
]}

Fescenko, I

机构：

[1] Ecole Polytech Fed Lausanne, LTC, Lab Technol Composites & Polymeres, CH-1015 Lausanne, Switzerland

[2] Inst Polymer Mech, LV-1006 Riga, Latvia

来源：

THIN SOLID FILMS | 2003年 / 434卷 / 1-2期

关键词：

fragmentation; coatings; silicone oxide; polymers;

D O I：

10.1016/S0040-6090(03)00482-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crack patterns of 100-nm thick silicon oxide coatings on poly(ethylene terephthalate), polypropylene and polyamide films are analyzed under equibiaxial stress loading. The loading is achieved by means of a bulging cell mounted under an optical microscope with stepwise pressurization of film specimens. The evolution of the coating fragment area distribution in the early stages of the fragmentation process is modeled using Weibull statistics to describe the coating strength. Fragment areas are found to follow the exponential distribution at low strains close to the cracking onset. With the increase of equibiaxial strain, the distribution changes reflecting stress transfer and crack propagation features. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：203 / 215

页数：13

共 36 条

[1] Fibre fragment distribution in a single-fibre composite tension test [J].