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Article Dans Une Revue Materials Research Society Symposium Proceedings Année : 2006

X-ray diffraction study of the mechanical elastic properties of nanometric W/Cu multilayers

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The mechanical behavior of W/Cu multilayers with a period of 24 nm and a 1/3 W/Cu thickness ratio prepared by magnetron sputtering was analyzed using a method combining X-ray diffraction and tensile testing. Tests were performed both with a conventional and a synchrotron light source to analyze the elastic response of the system. Comparison between the strain-load curves obtained in both experimental conditions and estimated curves clearly shows that high quality synchrotron measurements are a preliminary condition for size-effect studies. Moreover, cyclic tests were used to determine the elastic domain of each material and compare their mechanical responses. Plastic strain was observed in copper before in tungsten layers in accordance with the mechanical behavior of their bulk counterparts.
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hal-01007435 , version 1 (16-06-2014)

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Pascale Villain, Baptiste Girault, Pierre-Olivier Renault, Eric Le Bourhis, Philippe Goudeau, et al.. X-ray diffraction study of the mechanical elastic properties of nanometric W/Cu multilayers. Materials Research Society Symposium Proceedings, 2006, 977, pp.97-102. ⟨10.1557/PROC-977-0977-FF07-01-EE07-01⟩. ⟨hal-01007435⟩

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