Skip to main content
Log in

Optimization of the composition and sintering conditions of high-voltage ZnO varistor ceramics

  • Published:
Inorganic Materials Aims and scope

Abstract

This paper presents a study aimed at optimizing the composition and sintering conditions of highvoltage ZnO varistor ceramics. We demonstrate that, with allowance for the cost of starting materials, the optimal composition of high-voltage ZnO varistor ceramics is as follows (wt %): ZnO, 90; Bi2O3, 2.76; Sb2O3, 1.92; Al2O3, 3.32; and Co2O3, 2. The optimal sintering conditions are isothermal holding at a temperature of 975°C for 2 h. The ceramics thus prepared have V b = 4.5 kV/mm, α = 50, I l = 1.1 μA/cm2, density ρ = 5.67 g/cm3 (relative density of 96.1%).

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Lihong Cheng, Guorong Li, Liaoying Zheng, Yan Gu, and Fuping Zhang, Analysis of high-voltage ZnO varistor prepared from a novel chemically aided method, J. Am. Ceram. Soc., 2010, vol. 93, no. 9, pp. 2522–2525.

    Article  CAS  Google Scholar 

  2. Pinskaya, D.B., Zhukovskaya, I.V., Sinel’shchikova, T.Yu., and Saenko, I.V., RF Patent 2 514 085, Byull. Izobret., 2014, no. 12.

  3. Nahm, C.-W., Effect of MnO2 addition on microstructure and electrical properties of ZnO–V2O5-based varistor ceramics, Ceram. Int., 2009, vol. 35, pp. 541–546.

  4. Lihong Cheng, Guorong Li, Liaoying Zheng, Jiangtao Zeng, Yan Gu, and Fuping Zhang, Analysis of highvoltage ZnO varistor prepared from a novel chemically aided method, J. Am. Ceram. Soc., 2010, vol. 93, no. 9, pp. 2522–2525.

    Article  CAS  Google Scholar 

  5. Lauf, R.J. and Bond, W.D., Fabrication of high field zinc oxide varistors by sol–gel processing, Am. Ceram. Soc. Bull., 1984, vol. 63, pp. 278–281.

    CAS  Google Scholar 

  6. Duran, P., Capel, F., Tartaj, J., and Moure, C., Sintering behavior and electrical properties of nanosized doped ZnO powders produced by metallorganic polymeric processing, J. Am. Ceram. Soc., 2001, vol. 84, pp. 1661–1668.

    Article  CAS  Google Scholar 

  7. Chu, S.Y., Yan, T.M., and Chen, S.L., Analysis of ZnO varistors prepared by the sol–gel method, Ceram. Int., 2000, vol. 26, pp. 733–737.

    Article  CAS  Google Scholar 

  8. Hembram, K., Sivaprahasam, D., and Rao, T.N., Combustion synthesis of doped nanocrystalline ZnO powders for varistors applications, J. Eur. Ceram. Soc., 2011, vol. 31, pp. 1905–1913.

    Article  CAS  Google Scholar 

  9. Gromov, O.G., Savel’ev, Yu.A., Tikhomirova, E.L., Danilin, A.N., Kolobov, V.V., Lokshin, E.P., and Kalinnikov, V.T., Preparation of high-voltage ZnO varistor ceramics, Inorg. Mater., 2015, vol. 51, no. 5, pp. 516–519.

    Article  CAS  Google Scholar 

  10. Liyi Shi, Dong Xu, Qingdong Zhong, Zhenhong Wu, and Xinxin Wu, Chin. Patent 101 333 104, 2008.

  11. Gromov, O.G., Savel’ev, Yu.A., Tikhomirova, E.L., Danilin, A.N., Kolobov, V.V., Lokshin, E.P., and Kalinnikov, V.T., Preparation of high-breakdown-voltage ZnO varistor ceramics, Perspekt. Mater., 2015, no. 2, pp. 63–68.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to E. L. Tikhomirova.

Additional information

Original Russian Text © O.G. Gromov, Yu.A. Savel’ev, E.L. Tikhomirova, A.T. Belyaevskii, E.P. Lokshin, 2017, published in Neorganicheskie Materialy, 2017, Vol. 53, No. 5, pp. 542–546.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Gromov, O.G., Savel’ev, Y.A., Tikhomirova, E.L. et al. Optimization of the composition and sintering conditions of high-voltage ZnO varistor ceramics. Inorg Mater 53, 536–539 (2017). https://doi.org/10.1134/S0020168517050089

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0020168517050089

Keywords

Navigation