Impedance Spectroscopy of Zr Modified Ba5SmZr3V7O30 Ceramic - Open Access Library Journal

OALibJ > Vol.5 No.6, June 2018

Impedance Spectroscopy of Zr Modified Ba₅SmZr₃V₇O₃₀Ceramic ()

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DOI: 10.4236/oalib.1104639 439 Downloads 1,276 Views

Author(s)

B. K. Giri¹, B. B. Mohanty², P. S. Sahoo^3*, R. N. P. Choudhary⁴

Affiliation(s)

¹Department of Physics, Barbil College, Barbil, Orissa, India.
²Department of Physics, Betnoti College, Betnoti, Mayurbhanj, Orissa, India.
³Department of Physics, North Orissa University, Baripada, Odisha, India.
⁴Department of Physics, ITER, Bhubaneswar, Odisha, India.

ABSTRACT

Ba₅SmZr₃V₇O₃₀ is a new tungsten bronze structured ceramic compound prepared by substituting Zr at Ti site in Ba₅GdTi₃V₇O₃₀ following high-temperature solid-state reaction route. The X-ray diffraction analysis of the compound confirms the formation of single-phase orthorhombic structures at room temperature. Surface morphology of the compound was studied by scanning electron microscopy. Using a Hioki LCR meter, the effects of temperature (32℃ - 500℃) and frequency (10² - 10⁶ Hz) on structural and electrical properties were studied. Detailed analysis of impedance parameters furnishes a better conception of the electrical properties and type of relaxation processes in the material. The plateau region of the Z’~ frequency plot also indicates the presence of relaxation process in the material. The bulk resistance is observed to be decreased with rise in temperature showing a typical negative temperature coefficient of resistance (NTCR) behavior.

KEYWORDS

Ceramics, Tungsten Bronze Structure, Solid-State Reaction, X-Ray Diffraction

Share and Cite:

Giri, B. , Mohanty, B. , Sahoo, P. and Choudhary, R. (2018) Impedance Spectroscopy of Zr Modified Ba₅SmZr₃V₇O₃₀Ceramic. Open Access Library Journal, 5, 1-5. doi: 10.4236/oalib.1104639.

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