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Published May 10, 1993 | Published
Journal Article Open

Gibbs free-energy difference between the glass and crystalline phases of a Ni-Zr alloy


The heats of eutectic melting and devitrification, and the specific heats of the crystalline, glass, and liquid phases have been measured for a Ni24Zr76 alloy. The data are used to calculate the Gibbs free-energy difference, DeltaGAC, between the real glass and the crystal on an assumption that the liquid-glass transition is second order. The result shows that DeltaGAC continuously increases as the temperature decreases in contrast to the ideal glass case where DeltaGAC is assumed to be independent of temperature.

Additional Information

© 1993 American Institute of Physics (Received 5 October 1992; accepted 11 February 1993) This work represents one phase of research carried out at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration (NASA). Two of the authors (J.C.H. and W.L.J.) acknowledge the support of NASA under Grant No. NAG8-905.

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