Crystal Phases Formation Pattern of K2O-MgO-SiO2-CaF2 Glass-Ceramics
K2O-MgO-SiO2-CaF2微晶玻璃的晶相演变规律

The primary phase of K2O-MgO-SiO2-CaF2 glass-Ceramics is tetrasilicic-mica (K2CaMg5Si8O22F2) 5 the newly formed crystals in this glass-ceramics are KMg2.5Si8 O10F2 , CaO.MgO.2SiO2 andK2CaMg5Si8 O22F2 respectively in sequence. The chemical compositions of the final crystals, whichare composed of diopside and richterite, of this type glass-ceramics are almost the same as thoseof the parent glass.