The influence of platinum on the failure of EBPVD YSZ TBCs on NiCoCrAlY bond coats

被引：80

作者：

Yanar, NM ^{[1
]}

Meier, GH ^{[1
]}

Pettit, FS ^{[1
]}

机构：

[1] Univ Pittsburgh, Dept Mat Sci & Engn, Sch Engn, Pittsburgh, PA 15261 USA

来源：

SCRIPTA MATERIALIA | 2002年 / 46卷 / 04期

关键词：

thermal barrier coatings; NiCoCrAlY bond coats; Pt effects on TBCs;

D O I：

10.1016/S1359-6462(01)01222-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The failure of electron beam physical vapor deposition yttria stabilized zirconia thermal barrier coatings (TBCs) on NiCoCrAlY bond coats is described. It is shown that defects in the as-processed bond coats are responsible for TBC failures. By using a thin platinum layer deposited upon the NiCoCrAlY bond coat, it is shown that the lives of TBCs on such bond coats can be significantly extended since the as processed defects are removed. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：325 / 330

页数：6

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