The effect of composition on crystalization behavior and dielectric properties of wollastonite glass ceramic in the CaO-SiO2-MgO system

In this report، various compositions were selected based on wollastonite in CaO-SiO2-MgO system. XRD analysis revealed that wollastonite was the main crystalline phase in the sintered glass-ceramics. Sinterability and crystallization of glass ceramics were analyzed at various temperatures. 830 oC، was selected as the optimum sinterability temperature. Finally dielectric properties of glass-ceramic samples at 830 oC، in 12-8 GHz frequency were reported. Dielectric constant and dielectric loss of glass ceramics are 6. 7-7. 5 and 0. 0028-0. 0034 respectively.