Study of Crystallization Kinetics of Amorphous Zirconia in Fe_2O_3 Matrix by Kissinger Method

摘要

The composite materials Fe_2O_3-ZrO_2 with different content of zirconium oxide have been obtained by thermochemical synthesis. The process of crystallization of zirconium dioxide and the effect of the amount of zirconium dioxide on the phase transformation have been studied by DTA and microscopy. The activation energy of the crystallization process was calculated by the Kissinger method to be in average 170 KJ/mol. It is shown that an increase of the ZrO_2 content leads to an increase of temperature of crystallization.