Fatigue of polymer-supported Ag thin films

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The fatigue behavior of Ag films on polyethyleneterephthalate substrates was studied using electrical resistance measurements. Scanning electron microscopy images showed two types of failure: typical fatigue failure with extrusion-intrusion pairs, and ductile failure with local necking. Once through-thickness cracks are formed in the metal layer, cracks propagate and the resistance increases abruptly for both failure modes. The effect of adhesion on fatigue life is discussed in terms of concurrent delamination, crack initiation and propagation. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Issue Date
2012-06
Language
English
Article Type
Article
Keywords

CHANNEL-CRACKING; CYCLIC DEFORMATION; DAMAGE FORMATION; LENGTH-SCALE; COPPER-FILMS; METAL-FILMS; CU; BEHAVIOR; RELIABILITY; MECHANICS

Citation

SCRIPTA MATERIALIA, v.66, no.11, pp.915 - 918

ISSN
1359-6462
DOI
10.1016/j.scriptamat.2012.02.030
URI
http://hdl.handle.net/10203/98528
Appears in Collection
ME-Journal Papers(저널논문)
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