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Thermophysical and elastic properties of Cu50Zr50 and (Cu50Zr50)95Al5 bulk-metallic-glass-forming alloys

Fan, G. J. and Freels, M. and Choo, H. and Liaw, P. K. and Li, J. J. Z. and Rhim, Won-Kyu and Johnson, W. L. and Yu, P. and Wang, W. H. (2006) Thermophysical and elastic properties of Cu50Zr50 and (Cu50Zr50)95Al5 bulk-metallic-glass-forming alloys. Applied Physics Letters, 89 (24). Art. No. 241917. ISSN 0003-6951.

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By employing a containerless high-temperature high-vacuum electrostatic levitation technique, the thermophysical properties, including the ratio between the specific heat capacity and the hemispherical total emissivity, the specific volume, and the viscosity, of Cu50Zr50 and (Cu50Zr50)95Al5 bulk-metallic-glass (BMG)-forming liquids have been measured. Compared with Cu50Zr50, the improved glass-forming ability of (Cu50Zr50)95Al5 can be attributed to its dense liquid structure and its high value of viscosity. Additionally, the relationship between the viscosity of various BMG forming liquids at the melting temperature and the elastic properties of the corresponding glasses at room temperature will be compared.

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Additional Information:© 2006 American Institute of Physics. (Received 12 October 2006; accepted 14 November 2006; published online 13 December 2006) This work was supported by the National Science Foundation (NSF) International Materials Institutes (IMI) Program (DMR-0231320).
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Subject Keywords:copper alloys; zirconium alloys; aluminium alloys; metallic glasses; liquid metals; specific heat; emissivity; viscosity; vitrification; liquid structure; melting point; elasticity
Issue or Number:24
Record Number:CaltechAUTHORS:FANapl06b
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6691
Deposited By: Archive Administrator
Deposited On:18 Dec 2006
Last Modified:23 Nov 2020 19:53

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