Calcium Phosphate based glasses and glass ceramics are known for their bio-active nature. In Na2O-CaO-SiO2-P2O5 system composition containing 40$, 45%, 51% SiO2 and 6 wt% P2O5 were studied with regard to ease of glass formation and crystalline. In the system large quantities of Calcium Oxide can be incorporated without significant increase in melting temperature. Crystalline behavior has been studied by iso-thermal heat treatment were 800oC,850oC,900oC. Different crystalline phases developed during heat treatment were analyzed by X-0ray Diffraction method.
S B NIAZI ,W A SHAH ,F MAHMOOD ,R AZEEM ,M P I QAZI ,
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