Electrical properties of screen printed BaTiO3 thick films

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Stojanovic, B. D.
Foschini, C. R.
Pejovic, V. Z.
Pavlovic, V. B.
Varela, José Arana [UNESP]

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Elsevier B.V.


The deposition of thick film pastes by screen-printing is a relatively simple and convenient method to produce thicker layers with thickness up to 100 mum. In the present work, the barium titanate thick films were prepared from mechanically activated powders based on BaC03 and TiO2. After mixing, the powders were calcined at low temperature by slow heating and cooling rates. The thick films were deposited on to Al2O3 substrates through hybrid technology. The obtained films were fired at 850 degreesC together with electrode material (silver/palladium). The electrical properties of thick films: dielectric permittivity, dielectric losses, Curie temperature, hysteresis loop were reported. The obtained BT thick films can be applied in as multilayer capacitors or in gas sensor application. (C) 2003 Elsevier Ltd. All rights reserved.



BaTiO3 and titanates, capacitors, electrical properties, films

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Journal of the European Ceramic Society. Oxford: Elsevier B.V., v. 24, n. 6, p. 1467-1471, 2004.