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Pyroelectric properties of Bi2VO5.5 ceramic

Prasad, KVR and Varma, KBR (1991) Pyroelectric properties of Bi2VO5.5 ceramic. In: Journal of Physics D: Applied Physics, 24 (10). pp. 1858-1860.

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Official URL: http://iopscience.iop.org/0022-3727/24/10/022

Abstract

The dielectric, pyroelectric and thermal properties of ferroelectric Bi2VO5.5(Bi4V2O11) ceramic have been studied over a temperature range of 300-780 K. The sign of the pyroelectric coefficient is positive at room temperature. The dielectric constant, pyroelectric coefficient and specific heat exhibit anomalies around the Curie temperature, 725 K. The frequency response of the dielectric constant and tan delta has been studied over a frequency range of 1-100 kHz. It is found that both the dielectric constant and the loss tangent decrease with increasing frequency. The pyroelectric figures of merit from the point of view of different applications have been calculated at 320 K by combining pyroelectric, dielectric and thermal properties.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Institute of Physics.
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 26 Nov 2010 09:43
Last Modified: 26 Nov 2010 09:43
URI: http://eprints.iisc.ernet.in/id/eprint/34059

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