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Pyroelectric and Electrostrictive Properties of (1 –x–y) PZN ·xBT ·yPT Ceramic Solid Solutions

Kumar, Umesh and Cross, Eric L and Halliyal, Arvind (1992) Pyroelectric and Electrostrictive Properties of (1 –x–y) PZN ·xBT ·yPT Ceramic Solid Solutions. In: Journal of the American Ceramic Society, 75 (8). pp. 2155-2164.

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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1151-...

Abstract

The pyroelectric and electrostrictive properties of lead zinc niobate-lead titanate-barium titanate (PZN-BT-PT) ceramic solid solution were investigated. These properties of the (1 - x)PZN.xBT series were qualitatively explained with a composition fluctuation model. The pyroelectric depolarization temperatures of (1 - x - y)PZN.xBT.yPT ceramics were utilized to select compositions for room-temperature electrostrictive applications. Among them, 0.85PZN.0.10BT.0.05PT ceramic with Q11 = 0.018 m4/C2, Q12 = -0.0085 m4/C2, S2 at 25 kV/cm = -6.1 x 10(-4), T(max) = 75-degrees-C at 1 kHz, and T(t) = 27-degrees-C shows optimum properties for micropositioner applications.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to John Wiley and Sons.
Keywords: Phase-Transitions;Single-Crystals;System;Actuators;Titanate
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 30 May 2011 09:59
Last Modified: 30 May 2011 09:59
URI: http://eprints.iisc.ernet.in/id/eprint/37446

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