Lf. Chua et al., CORRELATIONS FOR THE THERMAL-EXPANSION COEFFICIENTS OF MOLTEN GLASS-FORMING SYSTEMS, Applied physics letters, 67(5), 1995, pp. 614-616
The specific volumes of molten Pd40Ni40P20, Pd77Cu6.5Si16.5, Pd82Si18,
and Ni80P20, which are all glass formers, and were measured near the
liquidus. It was found that the ratio alpha/T-g, where alpha is the th
ermal expansion coefficient and T-g is the glass transition temperatur
e, remains fairly constant for all these systems. The scaling follows
from the fact that with a larger thermal expansion coefficient, the fr
ee volume of the molten system would be squeezed out faster resulting
in a larger T-g. This scaling behavior also allows us to roughly predi
ct the glass transition temperature of a glass forming system. The gla
ss forming ability can also be predicted by a parameter defined as alp
ha/T-1. (C) 1995 American Institute of Physics.