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Elastic behavior of fibre-textured gold films by combining synchrotron X-ray diffraction and in-situ tensile testing

Published online by Cambridge University Press:  01 February 2011

D. Faurie ,
P.-O. Renault ,
E. Le Bourhis  and
P. Goudeau
D. Faurie
Affiliation:
Laboratoire de Métallurgie Physique, UMR 6630 CNRS - Université de Poitiers, SP2MI, Bd Marie et Pierre Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France.
P.-O. Renault
Affiliation:
Laboratoire de Métallurgie Physique, UMR 6630 CNRS - Université de Poitiers, SP2MI, Bd Marie et Pierre Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France.
E. Le Bourhis
Affiliation:
Laboratoire de Métallurgie Physique, UMR 6630 CNRS - Université de Poitiers, SP2MI, Bd Marie et Pierre Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France.
P. Goudeau
Affiliation:
Laboratoire de Métallurgie Physique, UMR 6630 CNRS - Université de Poitiers, SP2MI, Bd Marie et Pierre Curie, BP 30179, 86962 Futuroscope Chasseneuil Cedex, France.
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Abstract

The elastic behavior of gold thin films deposited onto Kapton substrate has been studied using in-situ tensile tester in a four-circle goniometer at a synchrotron beam line (LURE facility, France). Knowing the stress tensor in the film, the strong {111} fibre texture was taken into account using the Crystallite Group Method (CGM). CGM strain analysis allows predicting a non linear relationship between strain and sin2 Ψ obtained for the thin films due to the strong anisotropy of gold. In contrast, the average of strains in longitudinal and transversal directions varies linearly with sin2 Ψ. The evolution of the slope of these curves as a function of the applied stresses in the film allowed determining the single-crystal elastic constant s44 of thin gold films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 875: Symposium O – Thin Films - Stresses and Mechanical Properties XI , 2005 , O4.7
Copyright
Copyright © Materials Research Society 2005

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