Volume change in Zr50Cu40Al10 glassy alloys
| Autor: | Akihisa Inoue, Peter K. Liaw, Yoshihiko Yokoyama, T. Yamasaki, Raymond A. Buchanan |
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| Rok vydání: | 2007 |
| Předmět: |
Amorphous metal
Materials science Mechanical Engineering Zirconium alloy Metallurgy Relaxation (NMR) Metals and Alloys Analytical chemistry Young's modulus Electronic structure symbols.namesake Volume (thermodynamics) Mechanics of Materials Ball grid array Materials Chemistry symbols Glass transition |
| Zdroj: | Journal of Alloys and Compounds. :160-163 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2006.08.320 |
| Popis: | Quaternary Zr 47 Cu 40 Al 10 M 3 (M: IVA ∼ VIA), Zr 50 Cu 37 Al 10 M 3 (M: VIIA ∼ IB), and Zr 50 Cu 40 Al 7 M 3 (M: IIB∼) bulk glass alloys (BGAs) were examined to clarify the glassy structure of Zr 50 Cu 40 Al 10 BGA. The glass structural difference was evaluated by the volume change due to structural relaxation at the glass-transition temperature ( T g ); the volume shrinkage was estimated using density measurement. The results indicated that Pd, Ag, Pt, and Au, which are characterized by a filled d-shell electron structure, are effective for enhancing volume expansion in a glass structure. Furthermore, the volume changes in quaternary Zr–Cu–Al–M BGAs could be classified into two groups. This implies a difference in glass structure between the Zr 50 Cu 37 Al 10 M 3 (M = Pd, Ag, Pt, and Au) BGA and others examined in this study. |
| Databáze: | OpenAIRE |
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