TITLE

Dynamic delamination of patterned thin films

AUTHOR(S)
Kandula, Soma S. V.; Tran, Phuong; Geubelle, Philippe H.; Sottos, Nancy R.
PUB. DATE
December 2008
SOURCE
Applied Physics Letters;12/29/2008, Vol. 93 Issue 26, p261902
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We investigate laser-induced dynamic delamination of a patterned thin film on a substrate. Controlled delamination results from our insertion of a weak adhesion region beneath the film. The inertial forces acting on the weakly bonded portion of the film lead to stable propagation of a crack along the film/substrate interface. Through a simple energy balance, we extract the critical energy for interfacial failure, a quantity that is difficult and sometimes impossible to characterize by more conventional methods for many thin film/substrate combinations.
ACCESSION #
36054111

 

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