Radiation resistance of PFN and PNM-PT relaxor ferroelectrics

Angadi, Basavaraj and Jali, VM and Lagare, MT and Bhat, VV and Umarji, AM and Kumar, Ravi (2003) Radiation resistance of PFN and PNM-PT relaxor ferroelectrics. In: Radiation Measurements, 36 (1-6). pp. 635-638.

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Abstract

The relaxor ferroelectric compositions Pb(Fe1/2Nb1/2)O-3 (PEN) and [Pb(Mg1/3Nb2/3)O-3](0.8)-[PbTiO3](0.2) (PMN-PT) are studied for their radiation response to the high energy heavy ions (50 MeV Li3+, fluence 1 X 10(13)-1 X 10(14) ions/cm(2)) in terms of their structural, dielectric and piezoelectric properties. There was no change in the crystallinity of both the compositions after irradiation as seen from the XRD. The PEN composition did not show much change in the dielectric constant but the value of T-m decreased by 8degreesC. The PMN-PT composition showed an increase in the dielectric constant with increase in the irradiation fluence from 1 x 10(13) to 1 X 10(14) ions/cm(2) with no change in the value of T-m. The piezoelectric coefficient decreased in both the samples after irradiation. Among the compositions studied, PEN is observed to be more radiation resistant to changes in structural and dielectric properties than PM-PT. (C) 2003 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	Radiation Measurements
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Relaxor ferroelectrics;PFN;PMN–PT;Radiation e?ects;Dielectric properties
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	25 Aug 2011 06:35
Last Modified:	25 Aug 2011 06:35
URI:	http://eprints.iisc.ac.in/id/eprint/40181

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