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Structural studies of lead aluminate glasses
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Barney, E. R., Hannon, A. C., Holland, D., Winslow, D., Rijal, B., Affatigato, M. and Feller, S. A.. (2007) Structural studies of lead aluminate glasses. Journal of Non-Crystalline Solids, Vol.353 (No.18-21). pp. 1741-1747. ISSN 0022-3093
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Official URL: http://dx.doi.org/10.1016/j.jnoncrysol.2007.02.007
Abstract
Lead aluminate melts were quenched rapidly with a roller quencher and bulk glasses were formed over a composition range from 72.5 to 80.0 mol% PbO. Pulsed neutron diffraction, 27 Al MAS NMR and Raman spectroscopy were used to study the structure of a series of these glasses. The results show that in the glasses the aluminium is four coordinated by oxygen across the compositional range, with a bond length of about 1.76 angstrom The Pb-O peak in the neutron correlation function is asymmetric, and it can be modelled in terms of two bond lengths of similar to 2.25 angstrom and similar to 2.47 angstrom, with the majority of the coordination at the shorter distance. There is evidence that most or all of the lead ions are on asymmetric sites, coordinated by three oxygens in a trigonal pyramid arrangement. Both the neutron diffraction and Raman results indicate that the Pb-O bond lengths become shorter with increasing lead content. (c) 2007 Elsevier B.V. All rights reserved.
| Item Type: | Journal Article |
|---|---|
| Subjects: | T Technology > TP Chemical technology T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Science > Physics |
| Journal or Publication Title: | Journal of Non-Crystalline Solids |
| Publisher: | Elsevier Science BV |
| ISSN: | 0022-3093 |
| Date: | 15 June 2007 |
| Volume: | Vol.353 |
| Number: | No.18-21 |
| Number of Pages: | 7 |
| Page Range: | pp. 1741-1747 |
| Identification Number: | 10.1016/j.jnoncrysol.2007.02.007 |
| Status: | Not Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| Title of Event: | 10th International Conference on the Structure of Non-Crystalline Materials (NCM 10) |
| Location of Event: | Prague, Czech Republic |
| Date(s) of Event: | September 18-22, 2006 |
| URI: | http://wrap.warwick.ac.uk/id/eprint/31783 |
Data sourced from Thomson Reuters' Web of Knowledge
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