Study of delamination of thin film coating on cyclic nano-indentation test

被引：0

作者：

Kozuki, Kentaro ^{[1
]}

Omiya, Masaki ^{[1
]}

Kishimoto, Kikuo ^{[2
]}

Inoue, Hirotsugu ^{[1
]}

机构：

[1] Tokyo Inst Technol, Dept Mech & Control Engn, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528552, Japan

[2] Tokyo Inst Technol, Dept Mat Sci & Engn, Meguro Ku, Tokyo 1528552, Japan

来源：

PROGRESSES IN FRACTURE AND STRENGTH OF MATERIALS AND STRUCTURES, 1-4 | 2007年 / 353-358卷

关键词：

thin film; delamination; nano-indentation; cyclic loading; interface; interfacial strength;

D O I：

10.4028/www.scientific.net/KEM.353-358.1842

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The aim of this paper is to evaluate the cyclic interfacial strength between thin film and its substrate by cyclic nano-indentation tests. The specimen used in this study is PET substrate/ITO coatings layered specimen. From the indentation load and displacement curve, we proposed an evaluation method for the interfacial strength. The results are good agreement with the interfacial strength evaluated by peel test. After cyclic indentations, the surface profile was observed by atomic force microscope. The number of elongates increased with indentation cycles when the indentation load is low, whereas elongates number is almost constant under high load cases. These phenomena can be explained by simple models. In this study, two types of fracture modes are proposed. They are "subsidiary fracture mode" and "buckling mode".

引用

页码：1842 / +

页数：2

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