Effect of Final Crystallization Temperature

When Tc is low, n 1.0-1.2, and crystals tend to be monolamellar and homogeneous in size. At higher values of 7, curves are no longer superimposable, n increases rapidly with and the crystals again become more complex. (Kovacs et ai, 1966.) 

To a good approximation, isotherms were consistent with Avrami s equation (Avrami, 1939, 1940, 1941) relating z, the degree of crystallization [see equation (6.17)] to time and to the geometry of the nuclei  

So far the kinetics may not appear to reflect specifically the existence of a noncrystallizable sequence. It is worth noting, however, the growth law deduced from geometrical considerations  

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