%0 Journal Article
%T Structural Changes by Thermal Treatment up to Glass Obtention of P<sub>2</sub>O<sub>5</sub>-Na<sub>2</sub>O-CaO-SiO<sub>2</sub> Compounds with Bioglass Composition Types
%A Cristina Volzone
%A Franco Matšªas Stš¢bile
%J New Journal of Glass and Ceramics
%P 53-57
%@ 2161-7562
%D 2013
%I Scientific Research Publishing
%R 10.4236/njgc.2013.31009
%X <span style=\"color:black;\">P<sub>2</sub>O<sub>5</sub></span><span style=\"color:black;\">-</span><span style=\"color:black;\">Na<sub>2</sub>O-CaO-SiO<sub>2</sub> 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 P<sub>2</sub>O<sub>5</sub>-Na<sub>2</sub>O-CaO-SiO<sub>2</sub> systems thermally treated up to 1250?C, that is to say, before glass formation, by X ray diffraction. </span><span>Intermediate and final developed phases up to 1100<span style=\"color:black;\">?C</span> thermal treatment in samples were generated as a function of Na<sub>2</sub>O/CaO (1 and 1.62) and P<sub>2</sub>O<sub>5</sub>/Na<sub>2</sub>O ratios (0, 0.2 and 0.245). High-and low-combeites, calcium and sodium-calcium silicate were found at the highest studied temperature.</span><span></span>
%K Glass Ceramics
%K Structure
%K Thermal Treatment
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=27350