Buscar
Mostrando ítems 1-10 de 659
Dielectric behavior of epoxy/BaTiO3 composites using nanostructured ceramic fibers obtained by electrospinning
(2013-02-13)
Composite materials made of epoxy resin and barium titanate (BT) electrospun nanostructured fibers were prepared. BT fibers were synthesized from a sol based on barium acetate, titanium isopropoxide, and poly(vinyl ...
Dielectric behavior of epoxy/BaTiO3 composites using nanostructured ceramic fibers obtained by electrospinning
(2013-02-13)
Composite materials made of epoxy resin and barium titanate (BT) electrospun nanostructured fibers were prepared. BT fibers were synthesized from a sol based on barium acetate, titanium isopropoxide, and poly(vinyl ...
Dielectric properties of Pb Nb2 O6 ferroelectric ceramics at cryogenic temperatures
(2007-08-17)
Complex dielectric permittivity measurements in Pb Nb2 O6 ceramics were performed in a frequency and temperature range of 1 kHz-1 MHz and from 15 to 900 K, respectively. The results revealed two dielectric anomalies showing ...
Dielectric properties of Pb Nb2 O6 ferroelectric ceramics at cryogenic temperatures
(2007-08-17)
Complex dielectric permittivity measurements in Pb Nb2 O6 ceramics were performed in a frequency and temperature range of 1 kHz-1 MHz and from 15 to 900 K, respectively. The results revealed two dielectric anomalies showing ...
Nanoscale effects and polaronic relaxation in CaCu3Ti 4O12 compounds
(2011-01-01)
In the present communication, by using dielectric spectroscopy measurement, the correlations between Nanosized Barrier Layer Capacitance (NBLC) (Bueno et al. (2009) [7]) and the high frequency polaronic near-Debye dipolar ...
Nanoscale effects and polaronic relaxation in CaCu3Ti 4O12 compounds
(2011-01-01)
In the present communication, by using dielectric spectroscopy measurement, the correlations between Nanosized Barrier Layer Capacitance (NBLC) (Bueno et al. (2009) [7]) and the high frequency polaronic near-Debye dipolar ...
On the influence of pyrochlore phase on ferroelectric and dielectric properties of PZT thin films
(2020-02-17)
The intrinsic contribution of dielectric permittivity was obtained in thin films of PZT pyrolyzed at different temperatures. Pyrochlore phases were observed in films pyrolyzed at temperatures above 350 °C, while only the ...
Description of electric field-dependent dielectric permittivity in PMN ceramics
(2019-01-01)
The temperature dependences of the linear and nonlinear components of the dielectric permittivity of PMN ceramics were determined as a function of bias electric fields. The influence of the applied bias electrical field, ...