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Processing and characterization of sol-gel derived modified PbTiO3 for ferroelectric composite applications (1997)

Igreja, R. ; Dias, C. J. ; Marat-Mendes, J. N.

Springer

Journal of sol gel science and technology 8 (1997), S. 721-723

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ISSN: 1573-4846

Keywords: sol-gel ; lead titanate ; ferroelectric ; electroactive material ; composites

Source: Springer Online Journal Archives 1860-2000

Topics: Chemistry and Pharmacology

Notes: Abstract Powders of (Pb0.8Ca0.2)(Ti0.99Mn0.01)O3 have been prepared by sol-gel processing. A tetragonal phase is formed after heat treatment at as low as 800°C. The tetragonality was found to be 1.053±0.005 and Curie temperature 315°C. Composite films with 0–3 connectivity were prepared from 800°C heat treated powders and P(VDF-TrFE) by the solvent casting technique. Composites poled at 20 MV/m, exhibited a pyroelectric coefficient of 17.4 μC/m2K and a pyroelectric figure of merit (FOMp=p/ε) of 0.51 μC/m2K.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02436929

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