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Some electrical properties of sodium silicate glasses modified with titania

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Abstract

A number of glass samples were prepared from mixtures of SiO2, TiO2 and Na2CO3 (for Na2O) and their electrical characteristics were measured and interpreted in terms of an electrical energy gap somewhat smaller than the optical gaps previously reported for these glasses. Capacitance measurements showed that one effect of increasing the TiO2 content was to increase the permittivity. Traditional sodium silicate glasses conduct electricity by ions, but the admixture of TiO2 brings a significant electronic contribution. Some measurements at high electric fields were made and evidence of the applicability of small polaron theory to the results is presented.

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Authors and Affiliations

  1. Department of Physics, Brunel University, Uxbridge, Middlesex, UK

    C. A. Hogarth & M. N. Khan

Authors
  1. C. A. Hogarth
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  2. M. N. Khan
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Hogarth, C.A., Khan, M.N. Some electrical properties of sodium silicate glasses modified with titania. J Mater Sci 13, 402–406 (1978). https://doi.org/10.1007/BF00647785

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  • DOI: https://doi.org/10.1007/BF00647785

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