Electrical properties of magnesium titanate ceramics post-sintered by hot isostatic pressing | Zendy

Nataša Djordjević | Zendy; Dragan I. Olćan | Zendy; Nina Obradović | Zendy; Vesna Paunović | Zendy; Suzana Filipović | Zendy; Vladimir B. Pavlović | Zendy

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Electrical properties of magnesium titanate ceramics post-sintered by hot isostatic pressing

Author(s) -

Nataša Djordjević,

Dragan I. Olćan,

Nina Obradović,

Vesna Paunović,

Suzana Filipović,

Vladimir B. Pavlović

Publication year - 2017

Publication title -

science of sintering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1820-7413

pISSN - 0350-820X

DOI - 10.2298/sos1704373d

Subject(s) - materials science , thermistor , sintering , ceramic , hot isostatic pressing , temperature coefficient , titanate , varistor , pressing , magnesium , permittivity , metallurgy , hot pressing , composite material , dielectric , optoelectronics , electrical engineering , voltage , engineering

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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