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Isoconfigurational Elastic Constants and Liquid Fragility of a Bulk Metallic Glass Forming Alloy

Lind, Mary Laura and Duan, Gang and Johnson, William L. (2006) Isoconfigurational Elastic Constants and Liquid Fragility of a Bulk Metallic Glass Forming Alloy. Physical Review Letters, 97 (1). Art. No. 015501. ISSN 0031-9007. doi:10.1103/PhysRevLett.97.015501.

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Samples of Zr46.25Ti8.25Cu7.5Ni10Be27.5 were isothermally annealed and quenched near the glass transition temperature and studied by the pulse-echo overlap technique. The shear modulus G of the samples shows a strong reversible dependence on annealing temperatures and, thus, on the specific configurational potential energy of the equilibrium liquid. The low-T dependence of G of the configurationally frozen glasses shows linear temperature dependence as expected by Debye-Grüneisen theory. The T dependence of G in the liquid state is directly related to the viscosity and fragility of the liquid.

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Additional Information:©2006 The American Physical Society (Received 30 January 2006; published 5 July 2006) We acknowledge Dr. Konrad Samwer; Production Lapping Company, Inc., in Monrovia, California; the MRSEC Program CSEM of the NSF under Grants No. DMR-0080065 and No. DMR-0520565; and the MLUMPFAMTSDAMA at Caltech.
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Record Number:CaltechAUTHORS:LINprl06
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4878
Deposited By: Archive Administrator
Deposited On:12 Sep 2006
Last Modified:08 Nov 2021 20:20

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