Microstructure of oxides in thermal barrier coatings grown under dry/humid atmosphere

Zhaohui Zhou; Hongbo Guo; Juan Wang; Musharaf Abbas; Shengkai Gong

doi:10.1016/j.corsci.2011.04.024

Microstructure of oxides in thermal barrier coatings grown under dry/humid atmosphere

Zhaohui Zhou
, Hongbo Guo^*
, Juan Wang
, Musharaf Abbas
, Shengkai Gong

^*Corresponding author for this work

School of Materials Science and Engineering

Beihang University

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

The microstructure of thermally grown oxide (TGO) in thermal barrier coatings (TBCs) oxidized under dry/humid atmosphere at 1100 °C has been characterized by transmission electron microscopy. A thin and continuous oxide layer is formed in the as-deposited TBCs produced by electron beam physical vapor deposition. The TGO formed in dry atmosphere consists of an outer layer of fine α-alumina, zirconia grains and an inner layer of columnar α-alumina grains. However, a small amount of spinel is observed in the TGO under humid atmosphere. The presence of water vapour promotes the formation of spinel.

Original language	English
Pages (from-to)	2630-2635
Number of pages	6
Journal	Corrosion Science
Volume	53
Issue number	8
DOIs	https://doi.org/10.1016/j.corsci.2011.04.024
State	Published - Aug 2011

Keywords

A. Metal coatings
A. Superalloys
B. TEM
C. Oxidation

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10.1016/j.corsci.2011.04.024

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title = "Microstructure of oxides in thermal barrier coatings grown under dry/humid atmosphere",

abstract = "The microstructure of thermally grown oxide (TGO) in thermal barrier coatings (TBCs) oxidized under dry/humid atmosphere at 1100 °C has been characterized by transmission electron microscopy. A thin and continuous oxide layer is formed in the as-deposited TBCs produced by electron beam physical vapor deposition. The TGO formed in dry atmosphere consists of an outer layer of fine α-alumina, zirconia grains and an inner layer of columnar α-alumina grains. However, a small amount of spinel is observed in the TGO under humid atmosphere. The presence of water vapour promotes the formation of spinel.",

keywords = "A. Metal coatings, A. Superalloys, B. TEM, C. Oxidation",

author = "Zhaohui Zhou and Hongbo Guo and Juan Wang and Musharaf Abbas and Shengkai Gong",

year = "2011",

month = aug,

doi = "10.1016/j.corsci.2011.04.024",

language = "英语",

volume = "53",

pages = "2630--2635",

journal = "Corrosion Science",

issn = "0010-938X",

publisher = "Elsevier Ltd",

number = "8",

}

TY - JOUR

T1 - Microstructure of oxides in thermal barrier coatings grown under dry/humid atmosphere

AU - Zhou, Zhaohui

AU - Guo, Hongbo

AU - Wang, Juan

AU - Abbas, Musharaf

AU - Gong, Shengkai

PY - 2011/8

Y1 - 2011/8

N2 - The microstructure of thermally grown oxide (TGO) in thermal barrier coatings (TBCs) oxidized under dry/humid atmosphere at 1100 °C has been characterized by transmission electron microscopy. A thin and continuous oxide layer is formed in the as-deposited TBCs produced by electron beam physical vapor deposition. The TGO formed in dry atmosphere consists of an outer layer of fine α-alumina, zirconia grains and an inner layer of columnar α-alumina grains. However, a small amount of spinel is observed in the TGO under humid atmosphere. The presence of water vapour promotes the formation of spinel.

AB - The microstructure of thermally grown oxide (TGO) in thermal barrier coatings (TBCs) oxidized under dry/humid atmosphere at 1100 °C has been characterized by transmission electron microscopy. A thin and continuous oxide layer is formed in the as-deposited TBCs produced by electron beam physical vapor deposition. The TGO formed in dry atmosphere consists of an outer layer of fine α-alumina, zirconia grains and an inner layer of columnar α-alumina grains. However, a small amount of spinel is observed in the TGO under humid atmosphere. The presence of water vapour promotes the formation of spinel.

KW - A. Metal coatings

KW - A. Superalloys

KW - B. TEM

KW - C. Oxidation

UR - https://www.scopus.com/pages/publications/79957872931

U2 - 10.1016/j.corsci.2011.04.024

DO - 10.1016/j.corsci.2011.04.024

M3 - 文章

AN - SCOPUS:79957872931

SN - 0010-938X

VL - 53

SP - 2630

EP - 2635

JO - Corrosion Science

JF - Corrosion Science

IS - 8

ER -

Microstructure of oxides in thermal barrier coatings grown under dry/humid atmosphere

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Keywords

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