Failure detection of thermal barrier coatings using impedance spectroscopy

N. Q. Wu; Kazuhiro Ogawa; Minking Chyu; Scott X. Mao

doi:10.1016/j.tsf.2003.10.009

Failure detection of thermal barrier coatings using impedance spectroscopy

N. Q. Wu, Kazuhiro Ogawa, Minking Chyu, Scott X. Mao

ENG - Fracture and Reliability Research Institute

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

33 Citations (Scopus)

Abstract

Electrochemical impedance spectroscopy and microstructural evolution of thermal barrier coatings have been studied. The results of impedance spectroscopy measurement were fit to an idealized model circuit, which represents the physical behavior of thermal barrier coatings. Impedance spectroscopy was sensitive to defects such as cracks within yttria-stabilized zirconia coatings, and growth of thermally grown oxide film between the top coating and the bond coating. The experimental results provide a basis for the application of impedance spectroscopy in non-destructive evaluation of thermal barrier coatings.

Original language	English
Pages (from-to)	301-306
Number of pages	6
Journal	Thin Solid Films
Volume	457
Issue number	2
DOIs	https://doi.org/10.1016/j.tsf.2003.10.009
Publication status	Published - 2004 Jun 15

Keywords

Coatings
Corrosion
Electrical properties and measurements
Oxidation

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/j.tsf.2003.10.009

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title = "Failure detection of thermal barrier coatings using impedance spectroscopy",

abstract = "Electrochemical impedance spectroscopy and microstructural evolution of thermal barrier coatings have been studied. The results of impedance spectroscopy measurement were fit to an idealized model circuit, which represents the physical behavior of thermal barrier coatings. Impedance spectroscopy was sensitive to defects such as cracks within yttria-stabilized zirconia coatings, and growth of thermally grown oxide film between the top coating and the bond coating. The experimental results provide a basis for the application of impedance spectroscopy in non-destructive evaluation of thermal barrier coatings.",

keywords = "Coatings, Corrosion, Electrical properties and measurements, Oxidation",

author = "Wu, {N. Q.} and Kazuhiro Ogawa and Minking Chyu and Mao, {Scott X.}",

year = "2004",

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T1 - Failure detection of thermal barrier coatings using impedance spectroscopy

AU - Wu, N. Q.

AU - Ogawa, Kazuhiro

AU - Chyu, Minking

AU - Mao, Scott X.

PY - 2004/6/15

Y1 - 2004/6/15

N2 - Electrochemical impedance spectroscopy and microstructural evolution of thermal barrier coatings have been studied. The results of impedance spectroscopy measurement were fit to an idealized model circuit, which represents the physical behavior of thermal barrier coatings. Impedance spectroscopy was sensitive to defects such as cracks within yttria-stabilized zirconia coatings, and growth of thermally grown oxide film between the top coating and the bond coating. The experimental results provide a basis for the application of impedance spectroscopy in non-destructive evaluation of thermal barrier coatings.

AB - Electrochemical impedance spectroscopy and microstructural evolution of thermal barrier coatings have been studied. The results of impedance spectroscopy measurement were fit to an idealized model circuit, which represents the physical behavior of thermal barrier coatings. Impedance spectroscopy was sensitive to defects such as cracks within yttria-stabilized zirconia coatings, and growth of thermally grown oxide film between the top coating and the bond coating. The experimental results provide a basis for the application of impedance spectroscopy in non-destructive evaluation of thermal barrier coatings.

KW - Coatings

KW - Corrosion

KW - Electrical properties and measurements

KW - Oxidation

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SN - 0040-6090

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SP - 301

EP - 306

JO - Thin Solid Films

JF - Thin Solid Films

IS - 2

ER -

Failure detection of thermal barrier coatings using impedance spectroscopy

Abstract

Keywords

ASJC Scopus subject areas

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