A contribution to the Kauzmann temperature

The Kauzmann temperature has been extended from single component (or single compound) systems to two-component systems. The kauzmann temperature in tw o-component systems is defined as the isentropic temperature between the un dercooled liquid and the mixture of crystalline components. In the undercoo led liquid region of a polymorphous phase diagram, the reverse Kauzmann tem perature denotes the isentropic temperature between the undercooled liquid and the supersaturated terminal solid solution. With the defined two Kauzma nn temperatures, the difference between the measured glass transition tempe rature and the Kauzmann temperature is explained. The temperature condition , of solid state amorphization process is also interpreted.