Abstract
A quantitative approach, based on measurement of oxide tress evolution as a function of thermal cycling is described for identifying thermal barrier coating (TBC) damage and assessing remaining life. Residual stress in the thermally grown oxide was measured using photostimulated luminescence piezospectroscopy for electron beam physical vapour deposited TBCs, which were thermally cycled at three temperatures and over two cycling periods. The observed monotonic change in the oxide stress level with TBC life fraction is systematic with cycle time and nearly independent of exposure temperature. The temperature independence of the measured stress with life fraction would greatly simplify the use of this technology for the non-destructive evaluation of TBCs.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
