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Damaging of a Soft Polymeric Substrate by Crack Propagation Through Its Hard Coating

Published online by Cambridge University Press:  11 February 2011

M. George ,
J. Colin ,
C. Coupeau  and
J.W. Grilhé
M. George
Affiliation:
Dpt of materials sciences, LMP-SP2MI, University of Poitiers, France.
J. Colin
Affiliation:
Dpt of materials sciences, LMP-SP2MI, University of Poitiers, France.
C. Coupeau
Affiliation:
Dpt of materials sciences, LMP-SP2MI, University of Poitiers, France.
J.W. Grilhé
Affiliation:
Dpt of materials sciences, LMP-SP2MI, University of Poitiers, France.
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Abstract

Atomic force microscopy observations of the fine structure of cracks have been carried out on Nickel thin films on polyimide substrates under tensile test. For strains of the order of 10%, the cracking of the metallic thin film induces notable damaging of the polymeric substrate. Post-mortem observations of the substrate and finite element simulations of the stress field at the cracks head have been performed to characterize this unexpected damaging: the crack propagation at the film/substrate interface and inside the substrate.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 734: Symposia A/B – Defect-Mediated Phenomena in Ordered Polymers – Polymer/Metal Interfaces and Defect Mediated Phenomena in Ordered Polymers , 2002 , B2.7
Copyright
Copyright © Materials Research Society 2003

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References

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