Mechanical behaviour of metallic thin films on polymeric substrates and the effect of ion beam assistance on crack propagation

Journal Article · Mon Jan 10 00:00:00 EST 2005 · Acta Materialia

DOI:https://doi.org/10.1016/j.actamat.2004.09.036· OSTI ID:20637124

Coupeau, C ^[1]; Colin, J ^[1]; Grilhe, J ^[1]

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1. Laboratoire de Metallurgie Physique, UMR6630, SP2MI-Boulevard 3, Teleport 2-BP 30179-86962, FUTUROSCOPE CHASSENEUIL CEDEX (France)

The mechanisms of crack propagation in metallic films on polymeric substrates have been studied through in situ atomic force microscopy observations of thin films under tensile stresses and finite element stress calculations. Two series of films - ones deposited with ion beam assistance, the others without - have been investigated. The observations and stress calculations show that ion beam assistance can change drastically the propagation of cracks in coated materials: by improving the adhesion film/substrate, it slows down the delamination process, but in the same time enhances the cracks growth in the thickness of the material.

• OSTI ID: 20637124
• Journal Information: Acta Materialia, Vol. 53, Issue 2; Other Information: DOI: 10.1016/j.actamat.2004.09.036; PII: S1359-6454(04)00579-8; Copyright (c) 2004 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 1359-6454
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ATOMIC FORCE MICROSCOPY
CRACK PROPAGATION
CRACKS
FINITE ELEMENT METHOD
ION BEAMS
MECHANICAL PROPERTIES
STRESSES
THICKNESS
THIN FILMS