Effect of the top coat on the phase transformation of thermally grown oxide in thermal barrier coatings

被引：30

作者：

Zhao, X. ^{[1
]}

Hashimoto, T. ^{[1
]}

Xiao, P. ^{[1
]}

机构：

[1] Univ Manchester, Sch Mat, Ctr Mat Sci, Manchester M1 7HS, Lancs, England

来源：

SCRIPTA MATERIALIA | 2006年 / 55卷 / 11期

关键词：

thermal barrier coatings (TBCs); thermally grown oxides (TGO); phase transformation; alumina;

D O I：

10.1016/j.scriptamat.2006.08.017

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The phase transformation of the thermally grown oxide (TGO) formed on a Pt enriched gamma + gamma' bond coat in electron beam physical vapour deposited thermal barrier coatings (TBCs) was studied by photo-stimulated luminescence spectroscopy. The presence of the TBC retards the beta to alpha transformation of the TGO and leads to a higher oxidation rate. The reasons for these phenomena are discussed. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：1051 / 1054

页数：4

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