摘要：The range of magnitude of the liquid viscosity, η , as a function of temperature is one of the most impressive of any physical property, changing by approximately 17 orders of magnitude from its extrapolated value at infinite temperature ( η o) to that at the glass transition temperature, T g. We present experimental measurements of containerlessly processed metallic liquids that suggest that log( η/η o) as a function of T A/ T is a potentially universal scaled curve. In stark contrast to previous approaches, the scaling requires only two fitting parameters, which are on average predictable. The temperature T A corresponds to the onset of cooperative motion and is strongly correlated with T g, suggesting that the processes underlying the glass transition first appear in the high temperature liquid.
