Structural Changes by Thermal Treatment up to Glass Obtention of P2O5-Na2O-CaO-SiO2 Compounds with Bioglass Composition Types - New Journal of Glass and Ceramics

NJGC > Vol.3 No.1, January 2013

Volume 3, Issue 1 (January 2013)

ISSN Print: 2161-7554 ISSN Online: 2161-7562

Google-based Impact Factor: 1.75 Citations

Structural Changes by Thermal Treatment up to Glass Obtention of P₂O₅-Na₂O-CaO-SiO₂ Compounds with Bioglass Composition Types ()

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DOI: 10.4236/njgc.2013.31009 5,515 Downloads 8,233 Views Citations

Author(s)

Cristina Volzone, Franco Matías Stábile

Affiliation(s)

CETMIC Centro de Tecnología de Recursos Minerales y Cerámica, Buenos Aires, Argentina..

ABSTRACT

P₂O₅-Na₂O-CaO-SiO₂ compounds are the base of certain glass types. Glasses are solids obtained by fast cooling of melted mix of certain compounds. Different compositions give origin to many products with a variety of applications such as: bottles, coatings, windows, tools for chemical industry, laboratory equipment, optics, as bioceramics, etc. The aim of this work was to analyze structural changes of different composition in the P₂O₅-Na₂O-CaO-SiO₂ systems thermally treated up to 1250?C, that is to say, before glass formation, by X ray diffraction. Intermediate and final developed phases up to 1100?C thermal treatment in samples were generated as a function of Na₂O/CaO (1 and 1.62) and P₂O₅/Na₂O ratios (0, 0.2 and 0.245). High-and low-combeites, calcium and sodium-calcium silicate were found at the highest studied temperature.

KEYWORDS

Glass Ceramics; Structure; Thermal Treatment

Share and Cite:

Volzone, C. and Stábile, F. (2013) Structural Changes by Thermal Treatment up to Glass Obtention of P₂O₅-Na₂O-CaO-SiO₂ Compounds with Bioglass Composition Types. New Journal of Glass and Ceramics, 3, 53-57. doi: 10.4236/njgc.2013.31009.

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