Electrical Properties of Magnesium Titanate Ceramics Post-Sintered by Hot Isostatic Pressing

Authors

  • Antonije Đorđević School of Electrical Engineering, University of Belgrade and Serbian Academy of Sciences and Arts
  • Dragan Olćan School of Electrical Engineering, University of Belgrade
  • Nina Obradović Institute of Technical Sciences of SASA
  • Vesna Paunović Faculty of Electronic Engineering, University of Niš
  • Suzana Filipović Institute of Technical Sciences of SASA
  • Vladimir Pavlović Institute of Technical Sciences of SASA

Abstract

Post-sintering of magnesium titanate ceramics by hot isostatic pressing (HIP) in an oxygen-free atmosphere significantly alters various electrical properties of the product. In particular, the sintered material becomes a semiconductor. The aims of this paper are: to extend our investigations of the electrical properties of this material by expanding the frequency range of measurements, to design interpolation formulas for the frequency dependence of the complex relative permittivity, and to propose HIP-sintered magnesium titanate as a material for thermistors that have a negative-temperature-coefficient resistance (NTCR), as well as for varistors.

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Published

2017-12-13

Issue

Vol. 49 No. 4 (2017)

Section

Articles