Deviation values of specific heat difference DCp; the Gibbs free energy difference DG; enthalpy difference DH; and entropy difference DS between the
supercooled liquid and corresponding crystalline phase produced by the linear, hyperbolic, and Dubey’s expressions of DCp and the corresponding experimental values are determined for sixteen bulk metallic glasses (BMGs) from the glass transition temperature Tg to the melting temperature Tm: The calculated values produced by the hyperbolic expression for DCp most closely approximate experimental values, indicating that the hyperbolic DCp
expression can be considered universally applicable,compared to linear and Dubey’s expressions for DCp;which are accurate only within a limited range of conditions.For instance, Dubey’s DCp expression provides a good approximation of actual experimental values within certain conditions.
Pei-You Li Gang Wang Ding Ding Jun Shen
. Determination of accurate theoretical values for thermodynamic properties in bulk metallic glasses[J]. Advances in Manufacturing, 2013
, 1(4)
: 293
-304
.
DOI: 10.1007/s40436-013-0040-3
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