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Thermal Expansion Studies in the Lead iron Niobiat - Lead Titanate System

Sunder, Sai VVSS and Umarji, AM (1995) Thermal Expansion Studies in the Lead iron Niobiat - Lead Titanate System. In: Materials Research Bulletin, 30 (4). pp. 427-434.

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Abstract

Compositions in the solid solution series $\{Pb(Fe_{0.5}Nb_{0.5})0_3\}_{1-x}- \{PbTiO_3\}_x$ $(x = 0 ->1)$ were prepared by'solid state reaction. The phase transition from rhombohedral/tetragonal to cubic structure has been studied as a function of x by differential thermal analysis, high temperature x-ray diffraction and dilatometry in the temperature range 298-773K. Dielectric measurements and thermal expansion coefficients of the x=0.2 composition indicate that the relaxor type behiviour of lead iron niobate is extended up to 453K.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Lead Iron Niobiate;Lead Titanate;Perovskites
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 19 Feb 2007
Last Modified: 19 Sep 2010 04:35
URI: http://eprints.iisc.ernet.in/id/eprint/9868

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