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Thermophysical Properties of Bulk Metallic Glasses in the Stable and Undercooled Liquid – A Microgravity Investigation

Published online by Cambridge University Press:  17 March 2011

Hans-Jörg Fecht ,
Rainer K. Wunderlich ,
Stephen C. Glade  and
William L. Johnson
Hans-Jörg Fecht
Affiliation:
Materials Division, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, GERMANY
Rainer K. Wunderlich
Affiliation:
Materials Division, Ulm University, Albert-Einstein-Allee 47, D-89081 Ulm, GERMANY
Stephen C. Glade
Affiliation:
Keck Laboratory of Enineering Materials California Institute of Technology, Pasadena, CA 91125, USA
William L. Johnson
Affiliation:
Keck Laboratory of Enineering Materials California Institute of Technology, Pasadena, CA 91125, USA
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Abstract

The thermophysical properties in the stable and undercooled liquid phase of a series of Zr- based metallic glass forming alloys have been investigated under the condition of reduced gravity on board spacelab. Properties measured included the specific heat capacity and the enthalpy of fusion, the electrical resistivity, the total hemispherical emissivity, and the thermal transport properties. Results for the bulk metallic glass forming alloys indicate a pronounced change in chemical short range order in the liquid phase as function of temperature.

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