An equation, describing
crystallization kinetics, of the form:
where

is the crystalline
volume fraction developed at time

and constant temperature,

and

are suitable parameters.

is temperature dependent. According to the original theory,

should be an integer from 1 to 4, the value of which should depend only on the type
of the statistical model; however, it has become customary to regard it as an adjustable
parameter that may be non-integral.
Source:
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.