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Gamma-irradiation effects on the electrical conductivity of pure and Co-doped MgAl2O4 spinel

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Abstract

The electrical conductivity of pure and Co-doped MgAl2O4 spinels was measured at 700–1100 K. The results of both pure and doped spinels were found to be fitted with an exponential expression with two different activation-energy parameters, in two ranges of temperature. The effect of γ-irradiation on the electrical conductivity of pure and doped spinels was also studied. The kinetic parameters of the isothermal annealing of the induced irradiation damages in the spinels were determined. All the results were found to be consistent with the ionic conduction which was suggested to be due to the motion of the cation vacancy.

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Author notes

  1. M. A. Mousa

    Present address: Chemistry Department, Faculty of Science, Benha University, Benha, Egypt

Authors and Affiliations

  1. Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt

    M. A. Mousa, E. A. Gomaa & A. A. El-Khouly

  2. Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt

    A. A. M. Aly

  3. Nuclear Research Centre, Egypt

    H. F. Aly

Authors
  1. M. A. Mousa
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  2. E. A. Gomaa
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  3. A. A. El-Khouly
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  4. A. A. M. Aly
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  5. H. F. Aly
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Mousa, M.A., Gomaa, E.A., El-Khouly, A.A. et al. Gamma-irradiation effects on the electrical conductivity of pure and Co-doped MgAl2O4 spinel. Journal of Radioanalytical and Nuclear Chemistry Letters 87, 81–94 (1984). https://doi.org/10.1007/BF02167673

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  • DOI: https://doi.org/10.1007/BF02167673

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