Preparation and characterization of silicon free bioactive glass by queching

Abstract

Synthesis of bioactive glass that is a silicon free bioactive borate glass is achieved by the traditional method means by melt-casting. The glass was prepared by taking (40.9%) CaO-(34.9%) B2O3-(24.2%)BaO (BBCO) then by quick air quenching from 1250C to room temperature. XRD, DTA, and TGA studies are made to characterize the glass. Hydroxyapatite (HAp) or Ca10(PO4)6(HO)2 formation on the glass surface was tested by soaking the glass in K2HPO4 (0.25M with pH = 8.5) at 370C. Nanorods or bubbles of HAP are formed on the glass surface by soaking the glass for longer time. Fourier transform infrared spectroscopy (FTIR), scanning and election and high resolution transmission electron microscopic studies confirmed HAP formation.