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

Marylaura Thomas, Gang Duan, William L. Johnson

Research output: Contribution to journalArticle

76 Citations (Scopus)

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
StatePublished - 2006
Externally publishedYes

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metallic glasses
elastic properties
liquids
glass transition temperature
echoes
potential energy
viscosity
shear
temperature dependence
annealing
glass
pulses
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Isoconfigurational elastic constants and liquid fragility of a bulk metallic glass forming alloy. / Thomas, Marylaura; Duan, Gang; Johnson, William L.

In: Physical Review Letters, Vol. 97, No. 1, 015501, 2006.

Research output: Contribution to journalArticle

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