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Density change upon crystallization of amorphous Zr–Cu–Al thin films / Qiang Guo in Acta materialia, Vol. 58 N° 10 (Juin 2010) 

Public ISBD [article]  in Acta materialia > Vol. 58 N° 10 (Juin 2010) . - pp. 3633–3641 Titre : Density change upon crystallization of amorphous Zr–Cu–Al thin films Type de document : texte imprimé Auteurs : Qiang Guo, Auteur ; Peter K. Liaw, Auteur ; Philip D. Rack, Auteur Année de publication : 2011 Article en page(s) : pp. 3633–3641 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Metallic  glasses  Crystallization  Thin  films Résumé : Systematic deflection measurements with micro-cantilevers and a combinatorial-deposition method have been used to investigate the density change upon crystallization of amorphous Zr–Cu–Al thin films. It is found that, in general, the density change decreases from Cu-/Al-rich compositions to Zr-rich compositions, and the previously reported good glass-forming compositions are found to correspond to global minima of the density change inside respective local eutectic systems. Furthermore, we propose that the general trend of density change as a function of alloy compositions discovered in this work may have implications for the macroscopic plasticity of metallic glasses. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645410001321 [article] Density change upon crystallization of amorphous Zr–Cu–Al thin films [texte imprimé] / Qiang Guo, Auteur ; Peter K. Liaw, Auteur ; Philip D. Rack, Auteur . - 2011 . - pp. 3633–3641. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 10 (Juin 2010) . - pp. 3633–3641 Mots-clés : Metallic  glasses  Crystallization  Thin  films Résumé : Systematic deflection measurements with micro-cantilevers and a combinatorial-deposition method have been used to investigate the density change upon crystallization of amorphous Zr–Cu–Al thin films. It is found that, in general, the density change decreases from Cu-/Al-rich compositions to Zr-rich compositions, and the previously reported good glass-forming compositions are found to correspond to global minima of the density change inside respective local eutectic systems. Furthermore, we propose that the general trend of density change as a function of alloy compositions discovered in this work may have implications for the macroscopic plasticity of metallic glasses. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645410001321