| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Niranjan, Manish K.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2019Surface electronic structure, relaxations and thermodynamic energies of (100), (110) and (111) surfaces of Mg2Si: A first-principles theoretical study
- 2019Ferroelectric superlattices at nano scale: A Theoretical Investigation
- 2018Optimum discharge energy density at room temperature in relaxor K 1/2 Bi 1/2 TiO 3 for green energy harvesting
- 2017Phase stability and elastic properties of β Ti-Nb-X (X=Zr, Sn) alloys: An ab-initio density functional studycitations
- 2016Synthesis And Characterization of ferroelectric material (Na0.5Bi0.5)TiO3- Eu2O3
- 2015Microstructural studies of AgNbO3 ceramic by using complex impedance spectroscopy
- 2015Theoretical Investigation of Crystal and Electronic Structure of piezoelectric AgNb0.5Ta0.5O3
- 2012First principles study of structural, electronic and elastic properties of cubic and orthorhombic RhSi
- 2011Metallic and Insulating Oxide Interfaces Controlled by Electronic Correlations
- 2010Suppression of Octahedral Tilts and Associated Changes in Electronic Properties at Epitaxial Oxide Heterostructure Interfaces
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document
Microstructural studies of AgNbO3 ceramic by using complex impedance spectroscopy
Abstract
Lead-free piezoelectric silver niobate ceramic was synthesized by conventional solid state route. Room temperature X-ray diffraction pattern revealed that the sample crystallizes in single phase orthorhombic perovskite structure. Scanning electron micrographs of AgNbO3 ceramic showed that the average grain size is in the range 2–3 µm. The electrical properties were investigated by using impedance spectroscopy. Appearance of single semicircular arc in the Nyquist plot indicated the presence of grain contribution in the sample. Single RC parallel circuit model was employed to extract bulk capacitance (C b), resistance (R b) and electrical conductivity ( σ b). The activation energy calculated from impedance and modulus data indicate that same types of charge carriers (oxygen vacancy movements) are responsible for conduction and relaxation.