Affiliation:
1. Central South University
2. Guangdong Xingfa Aluminium Group
Abstract
The Li2O-ZnO-Al2O3-SiO2 system glasses with varying content of K2O were prepared.
Crystallization processes of these glasses were investigated using X-ray diffraction (XRD) and
differential scanning calorimetry (DSC). Microstructure of the glass-ceramics was studied using
scanning electron microscopy (SEM). The sequence of crystallization of Li2O-ZnO-Al2O3-SiO2
glasses can be divided into three stages such as crystallization of β1-Li2ZnSiO4, crystallization of
Li2Al2Si3O10 and conversion of β1-Li2ZnSiO4 to γ0-Li2ZnSiO4. The K2O content doesn’t vary the
crystallization sequence but enhances the crystallization of β1-Li2ZnSiO4. At the same time the
introducing of K2O in Li2O-ZnO-Al2O3-SiO2 system hinders the crystallization of Li2Al2Si3O10 and
the transformation of β1-Li2ZnSiO4 to the more stable phase γ0- Li2ZnSiO4.
Publisher
Trans Tech Publications, Ltd.
Cited by
5 articles.
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