Characterization of bioglass ceramic after addition of fluorine in Na 2O-CaO-SiO 2 system

Bioactive glass formed on the base sample (G o) of 45S5 system with fluorine additives samples we re prepared by melt quenching method. The glassy samples were subj ected to DTA for determining temperatures at which phase transition occur. FTTR spectroscopy shed a light on the sorts of compounds, their structure as well as their functional groups. The crystalline nature of sample s was confirmed by XRD. The calculation of crystal size X c revealed that the addition of fluorine as a network modifier didn’t affects the phase formation when t he phase Na 2CaSi 3O8 was formed which is similar to the phase developed within the base sample (G o) the addition of fluorine also caused a shift of the glass transition tempera ture (T g ) o C, softening temperature (T s) o C, and crystallization temperature (T c) o C to lower values.