Abstract
The method for analyzing crystallization kinetics by DSC was discussed on the basis of nucleation and growth equations. It was found that crystallization mechanism, that is, whether bulk crystallization or surface crystallization occurs, is very important for obtaining the meaningful activation energy. This was ascertained by applying the analytical formulae to the crystallization of Li2O·2SiO2 glass of which kinetic data on crystallization were already well known. It was also found that the so-called Kissinger plot is valid only when crystallization starts at the surface and growth progresses towards the inside of the glass one-dimensionally. It was concluded that the crystallization mechanism should be known in order to obtain the meaningful activation energy.
