| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10625405 | Ceramics International | 2014 | 5 Pages |
Abstract
Magnesium oxide and zinc oxide are widely used to reduce batch cost and increase the working range for the production of commercial Li2O-Al2O3-SiO2 (lithium aluminosilicate), LAS, glass-ceramics. However, little work is done on the crystallization kinetics of the glass-ceramic containing MgO and ZnO. In this work, an investigation was conducted to study the crystallization kinetics using non-isothermal and isothermal methods by differential scanning calorimetry (DSC) and high temperature X-ray diffraction (HTXRD), respectively. Both non-isothermal and isothermal methods confirm a bulk crystallization mechanism in the glass-ceramic. Activation energy values of 373 and 442Â kJ/mol were determined using a modified Kissinger model and the Johnson-Mehl-Avrami-Kohnogorov (JMAK) model, respectively.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Lola Lilensten, Qiang Fu, Bryan R. Wheaton, Allen J. Credle, Ronald L. Stewart, Jeffrey T. Kohli,