Impedance spectroscopy and conductivity analysis study of 0.6(BNT-BT)-0.4NCZF ceramic composites. Issue 1 (17th February 2021)

• Record Type: Journal Article
• Authors: Nanda, D.; Samanta, B.; Chandrasekhar, M.; Kumar, P.
• Is Part Of: Ferroelectrics. Volume 572:Issue 1(2021)
• Page Start: 192
• Page End: 204
• Publication Date: 2021-02-17
• Subjects: Impedance -- modulus spectroscopy -- conductivity -- activation energy; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2020.1868882
• Languages: English
• ISSNs: 0015-0193

Abstract

Abstract: Impedance and modulus spectroscopy along with conductivity analysis of 0.6(BNT-BT)-0.4NCZF samples, synthesised microwave processing technique are analysed and discussed. Impedance and modulus analysis revealed overall grain and grain boundary effects in 200 °C to 400 °C temperature range. Overall grain boundary (Rgb ) resistance decreased from 13570 Ω to 1877 Ω in 300 °C to 400 °C temperature range. AC conductivity study showed increase in conduction with increase of frequency as well as temperature. Activation energy (Ea ) for AC conduction was found to decrease from 0.81 eV (at 100 Hz) to 0.38 eV (100 kHz) in the 200 °C to 400 °C temperature range.