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Sol-gel synthesis and structural characterisation of binary TiO2-P2O5 glasses

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Pickup, David M., Speight, R. J. (Richard J.), Knowles, Jonathan C., Smith, Mark E. and Newport, Robert J. (2008) Sol-gel synthesis and structural characterisation of binary TiO2-P2O5 glasses. Materials Research Bulletin, Volume 43 (Number 2). pp. 333-342. doi:10.1016/j.materresbull.2007.03.005

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Official URL: http://dx.doi.org/10.1016/j.materresbull.2007.03.0...

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Abstract

An improved method for the sol-gel synthesis of binary (TiO2)(0.5)(P2O5)(0.5) glasses has been developed. Elemental analysis of the products showed that the loss of phosphorous upon drying and heat treatment is low. The structure of the heat-treated glasses was studied using neutron diffraction and high-energy X-ray diffraction, analysis of which revealed a structure consisting Of PO4 tetrahedra and TiO6 octahedra sharing corners in a three-dimensional amorphous network. The Reverse Monte Carlo method was used to produce a structural model which illustrated that the structure of the glass is, at the near-neighbour level, closely analogous to the superstructure of crystalline TiP2O7. No significant atomic-scale structural differences were observed between glasses prepared by acid- or base-catalysed sol-gel reactions. (c) 2007 Elsevier Ltd. All rights reserved.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Q Science > QD Chemistry
T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Administration > Vice Chancellor's Office
Faculty of Science > Physics
Library of Congress Subject Headings (LCSH): Colloids -- Synthesis, Neutrons -- Scattering, X-rays -- Diffraction, Ceramic materials, Glass
Journal or Publication Title: Materials Research Bulletin
Publisher: Pergamon-Elsevier Science LTD
ISSN: 0025-5408
Official Date: 5 February 2008
Dates:
DateEvent
5 February 2008Published
Volume: Volume 43
Number: Number 2
Number of Pages: 10
Page Range: pp. 333-342
DOI: 10.1016/j.materresbull.2007.03.005
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

Data sourced from Thomson Reuters' Web of Knowledge

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