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High-Voltage ZnO-Based Ceramics with a Leakage Current Density below 1 μA/cm2

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Inorganic Materials Aims and scope

Abstract—

This paper presents a study aimed at determining the weight ratio of oxide additives for obtaining high-voltage ceramics in the ZnO–Bi2O3–Sb2O3–Al2O3–Co3O4 system containing 90 wt % ZnO, with a leakage current density under 1 μA/cm2. The ceramic containing the oxide additives in the ratio Bi2O3 : Sb2O3 : Al2O3 : Co3O4 = 0.25 : 0.17 : 1.4 : 1.4 has a nonlinearity coefficient as high as α = 69, a leakage current density as low as Il = 0.4 μA/cm2, and a breakdown voltage Vb = 4.1 kV/mm.

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Authors and Affiliations

  1. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Scientific Center, Russian Academy of Sciences, Akademgorodok 26a, 184209, Apatity, Murmansk oblast, Russia

    E. L. Tikhomirova, Yu. A. Savel’ev & O. G. Gromov

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  1. E. L. Tikhomirova
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  2. Yu. A. Savel’ev
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  3. O. G. Gromov
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Correspondence to E. L. Tikhomirova.

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Translated by O. Tsarev

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Tikhomirova, E.L., Savel’ev, Y.A. & Gromov, O.G. High-Voltage ZnO-Based Ceramics with a Leakage Current Density below 1 μA/cm2. Inorg Mater 55, 405–408 (2019). https://doi.org/10.1134/S0020168519030154

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  • DOI: https://doi.org/10.1134/S0020168519030154

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