Compositionally graded yttria-stabilized zirconia coating on stainless steel using laser engineered net shaping (LENS™)

被引：79

作者：

Balla, Vainsi Krishna ^{[1
]}

Bandyopadhyay, Partha P. ^{[1
]}

Bose, Susmita ^{[1
]}

Bandyopadhyay, Amit ^{[1
]}

机构：

[1] Washington State Univ, Sch Mech & Mat Engn, WM Keck Biomed Mat Res Lab, Pullman, WA 99164 USA

来源：

SCRIPTA MATERIALIA | 2007年 / 57卷 / 09期

关键词：

graded coatings; thermal barrier coating (TBC); yttria-stabilized zirconia (YSZ); laser engineered net shaping (LENS (TM));

D O I：

10.1016/j.scriptamat.2007.06.055

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Fully dense, compositionally graded yttria-stabilized zirconia coatings have been developed using LENS(TM). Due to high thermal gradients and cooling rates in LENS(TM), a fine coating microstructure with a hardness in the range of 1700-2000 Hv is produced. The rapid heat loss through the substrate resulted in the directional growth of grains along the thickness direction. The inherent advantage of this approach is its ability to simultaneously control composition and micron level features to produce feature-based thermal barrier coatings. (C) 2007 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：861 / 864

页数：4

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