Dielectric characterization of the (1-x)La(Mg1/2Ti1/2)O-3-xBaTiO(3) microwave ceramics
authors Salak, AN; Seabra, MP; Ferreira, VM; Ribeiro, JL; Vieira, LG
nationality International
journal JOURNAL OF PHYSICS D-APPLIED PHYSICS
keywords TEMPERATURE-DEPENDENCE; SYSTEM; PEROVSKITES
abstract The dielectric properties of the perovskite mixed system La(Mg1/2Ti1/2)O-3-BaTiO3 were studied at radio, microwave and far infrared frequency ranges in respect of potential microwave application. The room temperature values of relative permittivity, dielectric loss and temperature coefficient of the resonant frequency were estimated by different methods. The permittivity and the thermo-stability coefficient were found to follow a simple hyperbolic-type dependence on composition. The dielectric response of air- and oxygen-sintered ceramics was compared and analysed. The origin of the dielectric loss and frequency dispersion in BaTiO3-rich compositions of the system is discussed.
publisher IOP PUBLISHING LTD
issn 0022-3727
year published 2004
volume 37
issue 6
beginning page 914
ending page 920
digital object identifier (doi) 10.1088/0022-3727/37/6/016
web of science category Physics, Applied
subject category Physics
unique article identifier WOS:000220787000017
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journal impact factor 2.373
5 year journal impact factor 2.707
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