Synthesis and Characterization of Ba(Zr{sub x}Ti{sub 1-x})O{sub 3} Solid Solutions Using Impedance Spectroscopic Techniques

Journal Article · Tue Nov 22 00:00:00 EST 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3644459· OSTI ID:21608499

Bajpai, P K; Mohan, C R. K. ^[1]

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1. Advanced Material Research Laboratory Department of Pure and Applied Physics Guru Ghasidas Vishwavidyalaya, Bilaspur-495009 (India)

Technologically important solid solutions of Ba(Zr{sub x}Ti{sub 1-x})O{sub 3} are synthesized using conventional solid state route. Relatively dense and single phase ceramics are confirmed using X-ray diffraction. Homogeneous and micron size grain growth is characterized using SEM. Impedance spectroscopy is used to study the electrical properties of ceramics. Broad and diffuse impedance loss peak is observed above 250 deg. C, which shifts towards higher frequency with increase in temperature. The distribution of relaxation frequency may be associated with the B-site cationic disorder due to the random distribution of (Zr{sup 4+}/Ti{sup +4}) having different ionic radii. Impedance relaxation obeys the Arrhenius relation with activation energy, E{tau} is 0.31 eV and 0.48 eV for BZT compositions with x = 0.10 and 0.15 respectively. Equivalent circuit representation using two RC element coupled in parallel is used to analyse the impedance response.

• OSTI ID: 21608499
• Journal Information: AIP Conference Proceedings, Vol. 1372, Issue 1; Conference: NSFD-14: 14. national seminar on ferroelectrics and dielectrics, Bilaspur, Chhattisgarh (India), 2-4 Dec 2010; Other Information: DOI: 10.1063/1.3644459; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTIVATION ENERGY
BARIUM COMPOUNDS
CERAMICS
ELECTRIC CONDUCTIVITY
ELECTRIC IMPEDANCE
EQUIVALENT CIRCUITS
EV RANGE
PHASE TRANSFORMATIONS
RANDOMNESS
RELAXATION
SCANNING ELECTRON MICROSCOPY
SOLID SOLUTIONS
SPECTROSCOPY
TITANATES
TITANIUM IONS
X-RAY DIFFRACTION
ZIRCONIUM COMPOUNDS
ZIRCONIUM IONS
ALKALINE EARTH METAL COMPOUNDS
CHARGED PARTICLES
COHERENT SCATTERING
DIFFRACTION
DISPERSIONS
ELECTRICAL PROPERTIES
ELECTRON MICROSCOPY
ELECTRONIC CIRCUITS
ENERGY
ENERGY RANGE
HOMOGENEOUS MIXTURES
IMPEDANCE
IONS
MICROSCOPY
MIXTURES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SCATTERING
SOLUTIONS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS