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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...
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 | ||||
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| Subjects: | Q Science > QC Physics Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Administration > Vice Chancellor's Office Faculty of Science > Physics |
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| 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: |
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| 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 |
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