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Medium-range order in the cation distribution of a calcium silicate glass

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Abstract

Silicate glasses have conventionally been regarded as silicate frameworks in which cations are distributed at random. Neutron scattering from isotopically substituted samples allows correlations between cations to be investigated beyond the nearest-neighbour coordination shell, and shows that a degree of ordering persists over distances approaching 1 nm. The structural picture that emerges has elements of long-range random-ness coexisting with both short- and medium-range order.

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Author notes

  1. A. C. Barnes

    Present address: H. H. Wills Physics Laboratory, University of Bristol, Royal Fort, Tyndall Avenue, Bristol, BS8 1TL, UK

Authors and Affiliations

  1. University of Cambridge, Cavendish Laboratory, Madingley Road, Cambridge, CBS OHE, UK

    P. H. Gaskell & M. C. Eckersley

  2. Institut Laue-Langevin, Avenue des Martyrs, 38042, Grenoble Cedex, France

    A. C. Barnes & P. Chieux

Authors
  1. P. H. Gaskell
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  2. M. C. Eckersley
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  3. A. C. Barnes
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  4. P. Chieux
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Gaskell, P., Eckersley, M., Barnes, A. et al. Medium-range order in the cation distribution of a calcium silicate glass. Nature 350, 675–677 (1991). https://doi.org/10.1038/350675a0

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  • DOI: https://doi.org/10.1038/350675a0

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