In vitro bioactivity of biphasic calcium phosphate silicate glass-ceramic in CaO-SiO2-P2O5 system

Author:

Radev Lachezar1,Hristov Vladimir2,Michailova Irena2,Fernandes Helena3,Salvado Miranda2

Affiliation:

1. University of Chemical Technology and Metallurgy, Sofia, Bulgaria%SR92-01.69

2. ista

3. University of Aveiro and CICECO, Aveiro, Portugal%SR92-01.26

Abstract

The main purpose of the paper is the evaluation of the influence of chemical composition of the gel of the synthesized 15CaO?0.5P2O5-6SiO2 glass-ceramic on the structure, crystallization behaviour and in vitro bioactivity in static conditions for different periods of time - 3, 9 and 30 days in 1.5SBF. The obtained glass-ceramic was synthesized via polystep sol-gel technique. The structure of the prepared and the one thermally treated at 1200?C for 2 h powder was studied by XRD, 29Si MAS NMR, FTIR and SEM. .

Publisher

National Library of Serbia

Subject

Ceramics and Composites

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