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Change of Compressiblity at the Glass Transition and Prigogine-Defay Ratio in ZrTiCuNiBe Alloys

Samwer, K. and Busch, R. and Johnson, W. L. (1999) Change of Compressiblity at the Glass Transition and Prigogine-Defay Ratio in ZrTiCuNiBe Alloys. Physical Review Letters, 82 (3). pp. 580-583. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:SAMprl99

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Abstract

The change of the compressibility at the glass transition Tg is evaluated from pressure experiments in the liquid and the glassy state of the ZrTiCuNiBe bulk metallic glass forming system. Via the enthalpy recovery method, we derive an increase of Tg with pressure of 3.6 K/GPa. Comparing the changes of the compressibility, the specific heat capacity, and the thermal expansion coefficient at Tg, we estimate for the first time a Prigogine-Defay ratio in metallic systems. This ratio is about 2.4 for the present alloy and compares well with known nonmetallic glass forming systems.


Item Type:Article
Additional Information:©1999 The American Physical Society Received 28 August 1998 The authors acknowledge a tremendous amount of technical support by U. Bete. The work was supported by the Department of Energy (Grant No. DEFG-03-86ER45242).
Record Number:CaltechAUTHORS:SAMprl99
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:SAMprl99
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.82.580
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6780
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:21 Dec 2006
Last Modified:26 Dec 2012 09:24

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