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Sol–gel produced sodium calcium phosphosilicates for bioactive applications: Synthesis and structural characterisation

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Carta, Daniela, Newport, Robert J., Knowles, Jonathan C., Smith, Mark E. and Guerry, Paul (2011) Sol–gel produced sodium calcium phosphosilicates for bioactive applications: Synthesis and structural characterisation. Materials Chemistry and Physics, Vol.130 (No.1-2). pp. 690-696. doi:10.1016/j.matchemphys.2011.07.050

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Official URL: http://dx.doi.org/10.1016/j.matchemphys.2011.07.05...

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Abstract

A series of phosphosilicates P(2)O(5) (45 mol%)-CaO (20-40 mol%)-Na(2)O (5-20 mol%)-SiO(2) (10-15 mol%) has been synthesised by the sol-gel route using PO(OH)(3-x)(OC(2)H(5))(x) (x = 1, 2) as the phosphorus precursor. Evolution of the gels with temperature was studied using thermogravimetric analysis and differential thermal analysis. These phosphosilicates show good stability against crystallisation remaining fully amorphous even after calcination at 400 degrees C. The short-range structure of the stabilised sol-gel glasses and the effect of adding modifier oxides to the network structure have been investigated using a combination of techniques: FT-IR spectroscopy, (31)P magic angle spinning NMR, high energy XRD and P L-edge XANES.

Item Type: Journal Article
Divisions: Administration > Vice Chancellor's Office
Faculty of Science > Physics
Journal or Publication Title: Materials Chemistry and Physics
Publisher: Elsevier Science SA
ISSN: 0254-0584
Official Date: 2011
Dates:
DateEvent
2011Published
Volume: Vol.130
Number: No.1-2
Number of Pages: 7
Page Range: pp. 690-696
DOI: 10.1016/j.matchemphys.2011.07.050
Status: Peer Reviewed
Access rights to Published version: Restricted or Subscription Access
Funder: Engineering and Physical Sciences Research Council (EPSRC), Advantage West Midlands (AWM), European Regional Development Fund (ERDF), University of Warwick, SRS Daresbury Laboratory, WCU through the National Research Foundation of Korea (NRF), Ministry of Education, Science and Technology
Grant number: GR/88595/01, GR/C004671, GR/C004698, GR/C515560, R31-10069

Data sourced from Thomson Reuters' Web of Knowledge

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