Glass Transition Temperature

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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]:

1. In a plot of volume versus temperature, the intersection of the liquid and glass curves marks <math>T_g</math>. Figure 1 [1], shows this phenomenon.

2. Temperature at which the material viscosity reaches <math> 10^13</math> poise.

See also

Glass transition


[1] Debenedetti and F. H. Stillinger. "Supercooled liquids and the glass transition". Nature, Vol 410, 8 March 2001.

Keyword in References

Homogeneous flow of metallic glasses: A free volume perspective