Rubberlike entropy elasticity of a glassy alloy

M. Fukuhara, A. Inoue, N. Nishiyama

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14 Citations (Scopus)


The authors report observations of thermal-induced entropy elasticity and the Gough-Joule effect for a glassy alloy, Pd40Cu30Ni 10P20, in terms of acoustoelasticity. Seven kinds of elastic parameters of the glassy alloy have been simultaneously measured as a function of temperature ranging from 298 to 673 K. The decrease in elastic moduli and Poisson's ratio and the increase in tension below the second-order-like phase transition temperature suggest rubberlike thermal dynamic micro-Brownian stretching, described as F(Pa)=0.282T+562, which may be associated with the rotational and vibrational motions of polyhedron clusters.

Original languageEnglish
Article number101903
JournalApplied Physics Letters
Issue number10
Publication statusPublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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