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Electrical behaviour of CaO-doped ThO2

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Abstract

The total a.c. conductivity of a CaxTh1−x O2−x solid solution with fluorite-type structure was measured at 1360 Hz with 0⩽x⩽0.25 and at temperatures of 100 to 600° C. The complex impedance behaviour was investigated at frequencies of 10 to 105 Hz and temperatures of 300 to 500° C. The complex dielectric permittivity was calculated at this frequency and in that temperature range. The activation energy for the bulk conductivity was calculated. Its value is about 1.48 eV forx<0.03 and about 1.25 forx⩾0.03.

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Authors and Affiliations

  1. Institute of Physics of the Electro-Physical Research Centre, Slovak Academy of Sciences, Bratislava, Czechoslovakia

    Vladimír Šály & Mária Hartmanová

  2. Research Institute of Electrotechnic Ceramics, Hradec Králové, Czechoslovakia

    Aleš Koller

Authors
  1. Vladimír Šály
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  2. Mária Hartmanová
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  3. Aleš Koller
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Šály, V., Hartmanová, M. & Koller, A. Electrical behaviour of CaO-doped ThO2 . J Mater Sci 23, 3884–3888 (1988). https://doi.org/10.1007/BF01106809

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  • DOI: https://doi.org/10.1007/BF01106809

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