• Development of zinc oxide varistors

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    • Keywords


      Zinc oxide; voltage — dependent resistors; varistors; surge suppressors; metal oxide varistors

    • Abstract


      Grain growth kinetics of ZnO ceramics containing 6% additives of Bi2O3, CoO and MnO in equal molar ratios has been studied in the temperature range 1000 to 1350°C. It has been observed that the grain growth data fits theD2=kt law and the activation energy computed from the rate constants is 65 kcal/mol.

    • Author Affiliations


      H S Kalsi1 B K Das1

      1. National Physical Laboratory, New Delhi - 110 012, India
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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