Bond strength, bond stress and spallation mechanisms of thermal barrier coatings

被引：131

作者：

Gell, M ^{[1
]}

Jordan, E

Vaidyanathan, K

McCarron, K

Barber, B

Sohn, YH

Tolpygo, VK

机构：

[1] Univ Connecticut, Dept Met & Mat Engn, Storrs, CT 06269 USA

[2] Univ Connecticut, Dept Engn Mech, Storrs, CT 06269 USA

[3] Univ Calif Santa Barbara, Dept Mat Sci & Engn, Santa Barbara, CA 93106 USA

来源：

SURFACE & COATINGS TECHNOLOGY | 1999年 / 120卷

关键词：

D O I：

10.1016/S0257-8972(99)00338-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Five production thermal barrier coatings were thermally cycled between room temperature and 1121 degrees C (2050 degrees F) to determine relative spallation life. Bond strength measurements were made using a modified ASTM direct pull-test. Bond stress measurements were made in the thermally grown oxide using a laser photoluminescence technique. Bond strength and bond stress measurements were conducted on two electron beam physical vapor deposition coatings as a function of thermal cycling. Each coating showed characteristic values of as-coated strength and stress and changes in strength and stress with thermal cycling. These variations in strength and stress with thermal cycling are related to oxidation and micro-debonding effects. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：53 / 60

页数：8

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