Title:	Active IR Thermography Evaluation of Coating Thickness by Determining Apparent Thermal Effusivity
Authors:	Moskovchenko, Alexey Vavilov, V. P. Švantner, Michal Muzika, Lukáš Houdková Šimůnková, Šárka
Citation:	MOSKOVCHENKO, A., VAVILOV, V. P., ŠVANTNER, M., MUZIKA, L., HOUDKOVÁ ŠIMŮNKOVÁ, Š. Active IR Thermography Evaluation of Coating Thickness by Determining Apparent Thermal Effusivity. Materials, 2020, roč. 13, č. 18. ISSN 1996-1944.
Issue Date:	2020
Publisher:	MDPI
Document type:	článek article
URI:	2-s2.0-85091341654 http://hdl.handle.net/11025/42655
ISSN:	1996-1944
Keywords in different language:	pulse thermography;coating thickness;apparent effusivity;thermal NDT;thermally sprayed coatings;thermographic testing;infrared non-destructive testing
Abstract in different language:	Pulsed thermography is a common technique for nondestructive testing (NDT) of materials. This study presents the apparent effusivity method for the quantitative evaluation of coating thickness in a one-sided thermal NDT procedure. The proposed algorithm is based on determining a threshold value of apparent effusivity, which can be found for particular coating-on-substrate structures. It has been found that the square root of the time at which the apparent effusivity curve reaches this threshold is proportional to the coating thickness. The efficiency of the proposed approach is demonstrated by analytical modeling and experimentation performed on thermally-sprayed coatings.
Rights:	© MDPI
Appears in Collections:	Články / Articles (KMM) Články / Articles (CT3) OBD

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.