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This paper presents a study on the use of pulsed phase thermography in the measurement of thermal barrier coating thickness with a numerical simulation. A multilayer heat transfer model was ussed to analyze the surface temperature response acquired from one-sided pulsed thermal imaging. The test sample comprised four layers: the metal substrate, bond coat, thermally grown oxide and the top coat. The finite element software, ANSYS, was used to model and predict the temperature distribution in the test sample under an imposed heat flux on the exterior of the TBC. The phase image was computed with the use of the software MATLAB and Thermofit Pro using a Fourier transform. The relationship between the coating thickness and the corresponding phase angle was then established with the coating thickness being expressed as a function of the phase angle. The method is successfully applied to measure the coating thickness that varied from 0.25 mm to 1.5 mm.
목차
Abstract
1. Introduction
2. Materials and Methods
3. Results and Discussions
4. Conclusions
References
참고문헌 (22)
참고문헌 신청
[학술지(정기간행물)] - A. Mathiazhagan / 2011 / Nanotechnology – A new prospective in organic coating-review / International Journal of Chemical Engineering and Applications 2 (4) : 225 ~
[단행본] - R. V. Hillery / 1996 / National Materials Advisory Board Report / National Academy Press
[학술지(정기간행물)] - F. Cernuschi / 2015 / Can TBC porosity be estimated by non-destructive infrared techniques? A theoretical and experimental analysis / Surface and Coatings Technology 272 : 387 ~ 394
[학술지(정기간행물)] - S. Akwaboa / 2012 / Thermal modeling and analysis of a thermal barrier coating structure using non-Fourier heat conduction / Journal of Heat Transfer 134 (11) : 111301 ~
[학술지(정기간행물)] - L. Wang / 2016 / Modeling of thermal properties and failure of thermal barrier coatings with the use of finite element methods: A review / Journal of the European Ceramic Society 36 (6) : 1313 ~ 1331
[단행본] - R. V. Hillery / 1996 / National Materials Advisory Board Report / National Academy Press
[학술지(정기간행물)] - F. Cernuschi / 2015 / Can TBC porosity be estimated by non-destructive infrared techniques? A theoretical and experimental analysis / Surface and Coatings Technology 272 : 387 ~ 394
[학술지(정기간행물)] - S. Akwaboa / 2012 / Thermal modeling and analysis of a thermal barrier coating structure using non-Fourier heat conduction / Journal of Heat Transfer 134 (11) : 111301 ~
[학술지(정기간행물)] - L. Wang / 2016 / Modeling of thermal properties and failure of thermal barrier coatings with the use of finite element methods: A review / Journal of the European Ceramic Society 36 (6) : 1313 ~ 1331
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UCI(KEPA) : I410-ECN-0101-2017-530-001097183