Multiple cracking of brittle coatings on strained substrates
Journal
Journal of Applied Physics
Journal Volume
96
Journal Issue
6
Pages
3501-3506
Date Issued
2004
Author(s)
Abstract
The use of multiple cracking of brittle coatings on strained substrates were described. It was found that if crack density was measured as a function of applied strain at one coating thickness, it can be used to predict those for other coating thicknesses. The crack density versus applied strain relation was used to deduce the residual stress if the residual stress in the coating is unknown. A method to define the effective substrate thickness was also proposed and it was found useful in analytical modeling of the stress transfer phenomena in coating/substrate systems.
SDGs
Type
journal article