Thermal wave nondestructive testing (NDT) of ceramic coatings

Steven M. Shepard; Lawrence D. Favro; Robert L. Thomas

doi:10.1117/12.204854

28 March 1995 Thermal wave nondestructive testing (NDT) of ceramic coatings

Steven M. Shepard, Lawrence D. Favro, Robert L. Thomas

Proceedings Volume 2473, Thermosense XVII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications; (1995) https://doi.org/10.1117/12.204854
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

Abstract

A description of preliminary experimental work, in which thickness of ceramic coatings is measured using pulse echo thermal wave imaging, is presented. The thermal wave measurement technique uses the time (relative to flash heating) at which the peak slope of the contrast curve occurs to determine the thickness of the coating layer, based on reflection of the thermal wave from the coating/substrate interface. Thermal wave thickness measurements are compared to measurements made (destructively) with a drill micrometer. Repeatability and precision of measurements are discussed.

Citation Download Citation

Steven M. Shepard, Lawrence D. Favro, and Robert L. Thomas "Thermal wave nondestructive testing (NDT) of ceramic coatings", Proc. SPIE 2473, Thermosense XVII: An International Conference on Thermal Sensing and Imaging Diagnostic Applications, (28 March 1995); https://doi.org/10.1117/12.204854

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available