Mukherjee, S. and Schroers, J. and Johnson, W. L. and Rhim, W.-K. (2005) Influence of Kinetic and Thermodynamic Factors on the Glass-Forming Ability of Zirconium-Based Bulk Amorphous Alloys. Physical Review Letters, 94 (24). Art. no. 245501. ISSN 0031-9007 http://resolver.caltech.edu/CaltechAUTHORS:MUKprl05
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The time-temperature-transformation curves for three zirconium-based bulk amorphous alloys are measured to identify the primary factors influencing their glass-forming ability. The melt viscosity is found to have the most pronounced influence on the glass-forming ability compared to other thermodynamic factors. Surprisingly, it is found that the better glass former has a lower crystal-melt interfacial tension. This contradictory finding is explained by the icosahedral short-range order of the undercooled liquid, which on one hand reduces the interfacial tension, while on the other hand increases its viscosity.
|Additional Information:||©2005 The American Physical Society (Received 11 August 2004; published 21 June 2005) This work was carried out at California Institute of Technology under a contract with the National Aeronautical and Space Administration (Grant No. NNMO4AA21G).|
|Subject Keywords:||amorphous state; zirconium alloys; viscosity; surface tension; short-range order; undercooling; glass transition|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||18 Feb 2006|
|Last Modified:||26 Dec 2012 08:46|
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