Feasibility assessment of self-grading metallic EBCs/TBCs to protect Si-Based bond coat alloys for ceramics

被引：6

作者：

Brady, MP

Armstrong, BL

Lin, HT

Lance, MJ

More, KL

Walker, LR

Huang, F

Weaver, ML

机构：

[1] Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA

[2] Univ Alabama, Tuscaloosa, AL 35487 USA

来源：

SCRIPTA MATERIALIA | 2005年 / 52卷 / 05期

基金：

美国能源部;

关键词：

silicon nitride; oxidation; coating; surface alloying; environmental barrier coatings (EBC); thermal barrier coatings (TBC);

D O I：

10.1016/j.scriptamat.2004.10.024

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A sputtered 7 (TiAl) + Laves TiAlCr coating formed an adherent Al2O3 scale on SN 282 Si3N4 when oxidized. A Ti-N rich layer was formed at the TiAlCr-Si3N4 interface, which effectively resulted in beneficial local Al enrichment underneath the growing Al2O3 scale, rather than detrimental Al loss to the substrate. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：393 / 397

页数：5

共 19 条

[1] The oxidation and protection of gamma titanium aluminides [J].