Abstract
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 language | English |
---|---|
Article number | 101903 |
Journal | Applied Physics Letters |
Volume | 89 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2006 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)