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Author Haberkorn, N.; Lovey, F. C.; Condó, A. M.; Guimpel, J
Title Development and characterization of shape memory Cu-Zn-Al thin films Type Journal Article
Year 2010 Publication Materials Science and Engineering B: Solid-State Materials for Advanced Technology Abbreviated Journal
Volume 170 Issue 1-3 Pages (up) 5-8
Abstract Ternary Cu-Zn-Al alloys show good shape memory properties with narrow hysteresis and a wide range of martensitic transformation temperature (Ms), depending on the alloy composition. Thin films of Cu-Zn-Al with shape memory effect were grown for the first time using a new procedure. First Cu-Al thin films were obtained by DC sputtering on Si (1 0 0) substrates at room temperature, and second, the Cu-Al films were encapsulated and annealed in the presence of a Cu-Zn-Al bulk reference in order to fix a Zn vapour pressure. In this way a controlled amount of Zn is transported from the bulk reference into the film, in such a way that the Ms of the film becomes nearly the same as the bulk reference. The structures and microstructures of the as grown films were analysed by X-ray diffraction and transmission electron microscopy. The martensitic transformation temperature was determined by resistivity measurements.
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Call Number BT @ hernan @ Serial 603
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