THERMAL CRACK INITIATION MECHANISMS ON THE SURFACE OF FUNCTIONALLY GRADED CERAMIC THERMAL BARRIER COATINGS

Authors
KOKINI K TAKEUCHI YR CHOULES BD
Citation
K. Kokini et al., THERMAL CRACK INITIATION MECHANISMS ON THE SURFACE OF FUNCTIONALLY GRADED CERAMIC THERMAL BARRIER COATINGS, Ceramics international, 22(5), 1996, pp. 397-401
Citations number
7
Categorie Soggetti
Material Science, Ceramics
Journal title
Ceramics international → ACNP
ISSN journal
02728842
Volume
22
Issue
5
Year of publication
1996
Pages
397 - 401
Database
ISI
SICI code
0272-8842(1996)22:5<397:TCIMOT>2.0.ZU;2-5
Abstract
The surface crack initiation mechanism in a multilayer zirconia/metal coating on a steel substrate was determined to be tensile stresses whi ch are generated by cooling after relaxation of the compressive stress es at high temperature. This crack initiation criterion is utilized to study the architectural design of a functionally graded coating. (C) 1996 Elsevier Science Limited and Techna S.r.l.