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Influence of Kinetic and Thermodynamic Factors on the Glass-Forming Ability of Zirconium-Based Bulk Amorphous Alloys

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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Abstract

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.


Item Type:Article
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
Record Number:CaltechAUTHORS:MUKprl05
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:MUKprl05
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.94.245501
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1787
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:18 Feb 2006
Last Modified:18 Sep 2014 18:11

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