Thermal expansion of amorphous Zr65Al7.5Cu17.5Ni10 in the vicinity of the glass transition
Institut für Physik, Universität Augsburg, 86135 Augsburg,
Corresponding author: a email@example.com
Revised: 11 June 1999
Published online: 15 January 2000
The thermal expansion of non-crystalline Zr65Al7.5Cu17.5 Ni10 has been studied in the range of the glass transition and in the undercooled liquid using a dilatometric device. The measuring technique used permits reliable experimental results up to 40 K above the glass transition temperature. The linear thermal expansion coefficient obtained is almost constant in the glassy state with a value of . It discontinuously increases at the glass transition temperature yielding a value of in the undercooled liquid. The results are compared with specific heat measurements of the amorphous material in this temperature range and are interpreted in the framework of a cluster model.
PACS: 65.70.+y – Thermal expansion and density changes; thermomechanical effects. / 61.43.Dq – Amorphous semiconductors, metals, and alloys
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2000