Phase-angle effects on damage mechanisms of thermal barrier coatings underthermomechanical fatigue

Authors
Baufeld, B Tzimas, E Hahner, P Mullejans, H Peteves, SD Moretto, P
Citation
B. Baufeld et al., Phase-angle effects on damage mechanisms of thermal barrier coatings underthermomechanical fatigue, SCR MATER, 45(7), 2001, pp. 859-865
Citations number
9
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
SCRIPTA MATERIALIA
ISSN journal
13596462 → ACNP
Volume
45
Issue
7
Year of publication
2001
Pages
859 - 865
Database
ISI
SICI code
1359-6462(20011010)45:7<859:PEODMO>2.0.ZU;2-R
Abstract
The damage mechanisms of thermal barrier coatings are investigated using in -phase (IP) and out-of-phase (OOP) thermomechanical fatigue (TMF) tests. Du ring IP testing, TMF damage is governed by the susceptibility of the coatin g to buckling, In OOP tests, cracking of the substrate controls life. Crack s initiate either at the unprotected surface of the substrate or within the bond coat. nucleated at defects formed during thermal exposure. (C) 2001 P ublished by Elsevier Science Ltd. on behalf of Acta Materialia Inc.