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Author Lovey, F.C.; Condo, A.M.; Guimpel, J.; Yacaman, M.J.
Title Shape memory effect in thin films of a Cu-Al-Ni alloy Type Journal Article
Year 2008 Publication MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING Abbreviated Journal
Volume 481 Issue Pages 426-430
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Abstract Thin films of Cu-26.9 at.% Al-5.5 at.% Ni were grown by dc magnetron sputtering from the alloy target previously melted in an induction furnace. The films were grown either on glass or (100)Si substrates at room temperature. The films, of approximately 3 μm thickness, were peeled off from the substrate for further studies. The structures and microstructures of the as grown films were analysed by transmission electron microscopy. A nanometric mixture of BCC and 2H phases was found irrespective of the substrate. The shape memory effect was not observed for this structural state. After an annealing at 1023 K for 3600s in He or Ar flux, followed by quenching to room temperature, the films were found to be in a martensitic state. Mainly the 18R structure was observed. At this stage the films were mechanically deformed at room temperature and then heated up to 373 K. A good shape recovery was observed to take place in a temperature range between 334 and 360 K. (C) 2007 Elsevier B.V. All rights reserved.
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ISSN 0921-5093 ISBN Medium
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Notes ISI:000255716100088 Approved (up) no
Call Number BT @ hernan @ Serial 144
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Author Haberkorn, N.; Condó, A.M.; Espinoza, C.; Jaureguizahar, S.; Guimpel, J.; Lovey, F.C.
Title Bulk-like behavior in the temperature driven martensitic transformation of Cu-Zn-Al thin films with 2H structure Type Journal Article
Year 2014 Publication Materials Letters Abbreviated Journal Journal of Alloys and Compounds
Volume 591 Issue Pages 263-267
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Notes Cited By :3; Export Date: 14 March 2018 Approved (up) no
Call Number BT @ jguimpel @ Serial 789
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Author Espinoza Torres, C.; Condó, A.M.; Haberkorn, N.; Zelaya, E.; Schryvers, D.; Guimpel, J.; Lovey, F.C.
Title Structures in textured Cu-Al-Ni shape memory thin films grown by sputtering Type Journal Article
Year 2014 Publication Materials Letters Abbreviated Journal Materials Characterization
Volume 96 Issue Pages 256-262
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Notes Cited By :5; Export Date: 14 March 2018 Approved (up) no
Call Number BT @ jguimpel @ Serial 791
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