The Giant Dielectric Constant of Y₂NiMnO₆ Ceramics for DC Bias

Abstract:

In this work, the uses of giant dielectric constant of Y₂NiMnO₆ ceramics were investigated in the frequency range from 1 kHz to 3 MHz. The Y₂NiMnO₆ ceramics were sintered at 1400 °C for 6, 12, 18 and 24 hours, respectively. The dielectric properties of Y₂NiMnO₆ ceramics were examined in dc bias from 0 to 1.5 volt at room temperature. We found that all sintering times displayed high dielectric permittivity at frequencies below 10⁵ Hz, above which the values decreased significantly, applied dc bias also reduced dielectric permittivity. The peak of dielectric loss decreased significantly at high dc bias due to decreased contribution of dc conductivity in grain ceramics. This research has characterised electrical properties of Y₂NiMnO₆ ceramics which maybe suitable for electronic components including batteries and capacitors.

• Periodical: Applied Mechanics and Materials (Volume 866)
• Pages: 277-281
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.866.277
• Online since: June 2017
• Authors: Naphat Albutt*, Suejit Pechprasarn, Pattaraporn Damkoengsuntorn, Thanapong Sareein
• Keywords: Ceramics, Composite, Dielectric Permittivity

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