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Preparation and characterisation of Pb(Zr0.52 Ti0.48)0.975Nb0.025O3 ceramics. Modelling the device (Articolo in rivista)

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Preparation and characterisation of Pb(Zr0.52 Ti0.48)0.975Nb0.025O3 ceramics. Modelling the device (Articolo in rivista) (literal)

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Alternative label

Roxana M. Piticescu; Liliana Mitoseriu; Massimo Viviani; Victor Moagar Poladian (2005)
Preparation and characterisation of Pb(Zr0.52 Ti0.48)0.975Nb0.025O3 ceramics. Modelling the device
in Journal of the European Ceramic Society; Elsevier Science Ltd., Oxford (Regno Unito)
(literal)

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Roxana M. Piticescu; Liliana Mitoseriu; Massimo Viviani; Victor Moagar Poladian (literal)

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Rivista

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In: Journal of the European Ceramic Society, vol. 25 (12) pp. 2491-2494. Elsevier, 2005. (literal)

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Institute for Non-ferrous and Rare Metals, 102 Biruintei Blv., Pantelimon-Ilfov, Romania; Department of Electricity, Al. I. Cuza University, Bvd. Carol 11, Iasi 700506, Romania; Institute of Energetics and Interphases-CNR, Via de Marini 6, Genoa, I-16149, Italy; National Institute for Microtechnologies, 26 Erou Iancu Nicolae, Voluntari-Ilfov, Romania (literal)

Titolo

Preparation and characterisation of Pb(Zr0.52 Ti0.48)0.975Nb0.025O3 ceramics. Modelling the device (literal)

Abstract

Ceramics with composition of Pb(Zr0.52Ti0.48) 0.975Nb0.025O3 prepared from powders obtained by hydrothermal synthesis method were investigated. A microstructure with mean grains sizes of 1-3 µm were found and the apparent density of 7.5-7.6 g/cm3. Dielectric constant and losses have been measured in the range of temperatures (30, 500 °C) with a heating/cooling rate of 0.5 °C/min at frequencies (0.1 Hz, 1 MHz), using impedance spectroscopy method. The transition heat was measured on the small ceramic samples with a differential scanning calorimeter. The permittivity was analysed with phenomenological models for relaxors. Dielectric and piezoelectric constants measured values were used as starting parameters to generate a model of a PZT actuator with ANSYS software package. The model geometry can be modified, after the simulation is performed, in order to achieve the functional objective. (literal)

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