MICROSTRUCTURES OF Y2O3-STABILIZED ZRO2 ELECTRON-BEAM PHYSICAL VAPOR-DEPOSITION COATINGS ON NI-BASE SUPERALLOYS

被引：103

作者：

UNAL, O ^{[1
]}

MITCHELL, TE ^{[1
]}

HEUER, AH ^{[1
]}

机构：

[1] CASE WESTERN RESERVE UNIV,DEPT MAT SCI & ENGN,CLEVELAND,OH 44106

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1994年 / 77卷 / 04期

关键词：

D O I：

10.1111/j.1151-2916.1994.tb07256.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The microstructures of ZrO2-20 wt% Y2O3 thermal barrier coatings formed by electron beam-physical vapor deposition on a Ni-base superalloy have been studied by transmission electron microscopy. The coating systems consist of several layers, including a superalloy substrate, a bond coat, an Al2O3 scale, and the PVD coating. The overall ceramic thermal barrier coatings were characterized, with special emphasis being given to the alpha-Al2O3 scale which forms between the bond coat and the ZrO2-Y2O3 coating. The oxide scale exhibited various morphologies in different coating systems; the majority of the porosity formed in this region for all coatings.

引用

页码：984 / 992

页数：9

共 28 条

[1]

BIANCHI LM, 1981, 7TH P INT C MAT TECH, P195

[2]

BIRKS N, 1973, INTRO HIGH TEMPERATU, P67

[3] EFFECT OF ION-BOMBARDMENT DURING DEPOSITION ON THICK METAL AND CERAMIC DEPOSITS [J].

BLAND, RD ;

KOMINIAK, GJ ;

MATTOX, DM .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY, 1974, 11 (04) :671-674

[4]

BOONE DH, 1974, J VAC SCI TECHNOL, V11, P541

[5]

BUSH R, 1975, 1975 P GAS TURB MAT

[6]

DEMARAY RE, 1982, 82GT264 AM SOC MECH

[7]

DEMARAY RE, 1982, 2ND P C ADV MAT ALT, P6

[8] MICROSTRUCTURE AND CRYSTALLOGRAPHY OF DIRECTIONALLY SOLIDIFIED (CO,NI)-CR23C6 EUTECTIC ALLOY [J].

DOUBLE, DD ;

ZAMBELLI, G .

JOURNAL OF MATERIALS SCIENCE, 1978, 13 (03) :534-540

[9] TRANSIENT OXIDATION OF SINGLE-CRYSTAL BETA-NIAL [J].

DOYCHAK, J ;

SMIALEK, JL ;

MITCHELL, TE .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1989, 20 (03) :499-518

[10] INFLUENCE OF YTTRIUM ADDITIONS ON OXIDE-SCALE ADHESION TO AN IRON-CHROMIUM-ALUMINUM ALLOY [J].

GOLIGHTLY, FA ;

STOTT, FH ;

WOOD, GC .

OXIDATION OF METALS, 1976, 10 (03) :163-187

← 1 2 3 →