Buscar
Mostrando ítems 51-60 de 1400
Computational approach of dielectric permittivities in BaTiO3-epoxy composites
(Sage Publications Ltd, 2008-09)
A numerical approach using a finite element method (FEM) was performed in order to determine the dielectric constant ("0) of BaTiO3–epoxy composites. In order to diminish computational resources and analyse simple models, ...
Nonlinear models for soil moisture sensor calibration in tropical mountainous soils
(Escola Superior de Agricultura "Luiz de Queiroz" - USP/ESALQ, 2022)
Electric measurements with constant current: A practical method for characterizing dielectric films
(American Institute of Physics (AIP), 2001-11-01)
This article assesses the use of the constant current (CC) method for characterizing dielectric films. The method is based on charging the sample with a constant current (current stress) and measuring the corresponding ...
Electric measurements with constant current: A practical method for characterizing dielectric films
(American Institute of Physics (AIP), 2001-11-01)
This article assesses the use of the constant current (CC) method for characterizing dielectric films. The method is based on charging the sample with a constant current (current stress) and measuring the corresponding ...
Study of reactive sputtering titanium oxide for metal-oxide-semiconductor capacitors
(ELSEVIER SCIENCE SA, 2009)
Metal oxide semiconductor (MOS) capacitors with titanium oxide (TiO(x)) dielectric layer, deposited with different oxygen partial pressure (30,35 and 40%) and annealed at 550, 750 and 1000 degrees C, were fabricated and ...
Dielectric spectroscopy on Bi3Zn2Sb3O14 ceramic: an approach based on the complex impedance
(Elsevier B.V., 2003-12-01)
The dielectric properties and loss of Bi1.5ZnSb1.5O7 a poor-semiconducting ceramic were investigated by impedance spectroscopy, in the frequency range from 5 Hz to 13 MHz. Electric measurements were performed from 100 to ...
Temperature dependence of dielectric properties for Ba(Zr0.25Ti0.75)O-3 thin films obtained from the soft chemical method
(Elsevier B.V., 2007-10-15)
Ba(Zr0.25Ti0.75)O-3(BZT) thin films prepared by the polymeric precursor method (PPM) were annealed at 500, 600, and 700 degrees C for 4h. All films crystallized in the perovskite structure present a crack-free microstructure. ...