Influence of plasma spray parameters on mechanical properties of yttria stabilized zirconia coatings. I: Four point bend test

被引：73

作者：

Kucuk, A

Berndt, CC

Senturk, U

Lima, RS

Lima, CRC

机构：

[1] SUNY Stony Brook, Dept Mat Sci & Engn, Ctr Thermal Spray Res, Stony Brook, NY 11794 USA

[2] Methodist Univ Piracicaba, UNIMEP, Ctr Technol, BR-13450000 Sao Paulo, Brazil

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 284卷 / 1-2期

关键词：

thermal barrier coatings; mechanical properties; plasma spray parameters;

D O I：

10.1016/S0921-5093(00)00799-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Yttria (8 wt.%) stabilized zirconia (YSZ) with a NiCrAlY bond coat was atmosphere plasma sprayed on mild steel substrates. The bond coat thickness (100-250 mu m), YSZ coating thickness (300-500 mu m), stand off distance (80-100 mm), and substrate temperature (273-393 K) were changed in a four by 17 experimental design matrix to investigate the influence of each spray parameter on the mechanical properties of coatings. Coatings were tested using a four point bend test arrangement. Coatings sprayed with thinner bond coat on a cold substrate exhibited higher yield strength and stiffness under bending. Change in the stand off distance and the top coat thickness did not statistically influence either yield strength or stiffness of the coatings. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：29 / 40

页数：12

共 37 条

[1]

*ASM INT, 1990, MET HDB, V1

[2]

Berndt C.C., 1988, MAT SCI FORUM, V34-36, P457

[3] FAILURE DURING THERMAL CYCLING OF PLASMA-SPRAYED THERMAL BARRIER COATINGS [J].