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Cationic conduction and diffusion and the compensation law

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Abstract

It is shown that measurements of ionic conductivity or diffusion made in the region intermediate between the intrinsic and extrinsic ranges closely obey the compensation law logD 0 =a + bΔH d, whereD 0 is the pre-exponential term in the equation for the diffusion coefficient, ΔH d is the experimentally determined activation enthalpy, anda andb are constants. It is further shown that such measurements can allow determination of defect formation energies. A procedure for analysing results in the intermediate region is proposed and tested for ion conduction by Li+ in LiF. Data for oxides are presented to show semi-quantitative agreement with the procedure.

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Authors and Affiliations

  1. Department of Ceramics, University of Leeds, UK

    T. Dosdale & R. J. Brook

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  1. T. Dosdale
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  2. R. J. Brook
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Dosdale, T., Brook, R.J. Cationic conduction and diffusion and the compensation law. J Mater Sci 13, 167–172 (1978). https://doi.org/10.1007/BF00739287

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  • DOI: https://doi.org/10.1007/BF00739287

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