Effect of fluorine content on the crystallization of fluorsilicic mica glass

摘要

The effect of fluorine content on the crystallization of fluorsilicic mica glass was investigated by differential thermal analysis (DTA), X-ray diffraction (XRD) and scanning electron microscope (SEM). A single phase, KMg3.25Si3.625O10F2, precipitates in all the glasses. Both the crystallization activation energy (E n ) and the frequency factor (ν) increase with the increase of the fluorine content. This means that the fluorine content has dual effects on the crystallization of fluorsilicic mica glass, while the effect on the frequency factor is predominant.