Strength and interfactial strength of ceramic layers on metal

HI!
I'm looking for information on how to assess the mechanical integrity
of ceramic layers on a metal substrate.
So imagine you have a ductile base metal with an oxide outer layer.
Stainless steel with chrome oxide outer surface.
Now in tension or a 3 point bend test how do you assess how the oxide
layer cracks and debonds. Specifically I"m interested in interfacial
strength and oxide layer thickness as critical parameters to keeping
the oxide stuck to a deforming substrate.
I've never thought about this but any experiences, references or ideas
are most appreciated.

Thanks.

.

Relevant Pages

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