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Thickness measurement of multi-layer conductive coatings using multifrequency eddy current techniques, 1-18

Lookup NU author(s): Professor Gui Yun TianORCiD

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Abstract

To ensure the key structural performance in high-temperature and high-stress environments, thermal barrier coatings (TBCs) are often adopted in engineering. The thickness of these multi-layer conductive coatings is an important quality indicator. In order to measure the thickness of multi-layer conductive coatings, a new measurement approach is presented using eddy current testing techniques, and then, an inversion algorithm is proposed and proved efficient and applicable, of which the maximum experimental relative error is within 10%. Therefore, the new approach can be effectively applied to thickness measurement of multi-layer conductive coatings such as TBCs.

Publication metadata

Author(s): Zhang Z, Yu Y, Lai C, Tian G

Publication type: Article

Publication status: Published

Journal: Nondestructive Testing and Evaluation

Year: 2015

Pages: 1-18

Print publication date: 07/10/2015

Online publication date: 07/10/2015

Acceptance date: 03/08/2015

ISSN (print): 1058-9759

ISSN (electronic): 1477-2671

Publisher: Taylor & Francis

URL: http://dx.doi.org/10.1080/10589759.2015.1081903

DOI: 10.1080/10589759.2015.1081903

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