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A structural study of sol-gel and melt-quenched phosphate-based glasses

Carta, Daniela, Pickup, David M., Knowles, Jonathan C., Ahmed, Ifty, Smith, Mark E., Newport, Robert J. (2007) A structural study of sol-gel and melt-quenched phosphate-based glasses. Journal of Non-Crystalline Solids, 353 (18-21). pp. 1759-1765. ISSN 0022-3093. (doi:10.1016/j.jnoncrysol.2007.02.008) (Access to this publication is currently restricted. You may be able to access a copy if URLs are provided) (KAR id:2518)

Language: English

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Phosphate-based glasses have recently attracted much interest as a new generation of biomaterials because of their ability to react and dissolve in the physiological environment and eventually to be replaced by regenerated hard or soft tissue. A series of phosphate-based glasses containing 45 mol% P2O5 and various amounts of CaO and Na2O were synthesized by sol-gel and melt-quenching techniques. A comparison between the structure of the sol-gel glass and the structure of the analogous melt-quenched glasses has been undertaken. A broad-based characterization approach combining different techniques has been used to investigate the short-range structure of the glasses and the effect of adding modifier oxides to the network structure (conventional and high energy X-ray diffraction, infra-red spectroscopy, (31)p solid state magic angle spinning NMR spectroscopy). Sol-gel and melt-quenched glasses appear to have a similar structure, showing similar Q(n) distributions and atomic correlations.

Item Type: Article
DOI/Identification number: 10.1016/j.jnoncrysol.2007.02.008
Uncontrolled keywords: biomaterials; phosphates; sol-gels (xerogels)
Subjects: Q Science
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Suzanne Duffy
Date Deposited: 31 Mar 2008 08:07 UTC
Last Modified: 16 Nov 2021 09:41 UTC
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