Isoconfigurational elastic constants and liquid fragility of a bulk metallic glass forming alloy

Marylaura Thomas, Gang Duan, William L. Johnson

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Abstract

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.

Original languageEnglish (US)
Article number015501
JournalPhysical Review Letters
Volume97
Issue number1
DOIs
Publication statusPublished - 2006
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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