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The dielectric constants of current-blackened single crystral yttria-stabilized zirconia

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Abstract

The dielectric constants of 8 mol % single crystal yttria-stabilized zirconia have been measured, using both radio-frequency and microwave methods, before and after blackening by high temperature electrolysis. For as-grown material ε′ = 38±4 and tan δ = 0.004. After electrolysis both the dielectric constant and loss tangent of the current-blackened material increased; this experimental data has been compared with theoretical predictions for composite dielectrics. The dielectric behaviour in the current-blackened material was consistent with the formation of metallic particles; these initially appeared to be spherical but elongated as electrolysis proceeded.

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Authors and Affiliations

  1. Department of Applied Physics and Electronics, University of Durham, UK

    J. S. Thorp & H. P. Buckley

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  1. J. S. Thorp
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  2. H. P. Buckley
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Thorp, J.S., Buckley, H.P. The dielectric constants of current-blackened single crystral yttria-stabilized zirconia. J Mater Sci 8, 1401–1408 (1973). https://doi.org/10.1007/BF00551662

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  • DOI: https://doi.org/10.1007/BF00551662

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