Glass Transition Temperature
Started by Lauren Hartle, Fall 2011.
The glass transition temperature, <math>T_g</math>, is the temperature at which an amorphous solid transitions continuously into a liquid state, and vice versa. There are several definitions of this temperature, detailed by Debenedetti and Stillinger :
1. In a plot of volume versus temperature, the intersection of the liquid and glass curves marks <math>T_g</math>. Figure 1 , shows this phenomenon.
2. Temperature at which the material viscosity reaches <math> 10^13</math> poise.
 Debenedetti and F. H. Stillinger. "Supercooled liquids and the glass transition". Nature, Vol 410, 8 March 2001.