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Mostrando ítems 1-10 de 2008
Electrical properties of the SnO2-based varistor
(1998-12-01)
The non-linear electrical properties of CoO-doped and Nb205-doped SnO2 ceramics were characterized. X-ray diffraction and scanning electron microscopy indicated that the system is single phase. The electrical conduction ...
Effect of magnesium on the properties of LiNbO 3 thin films prepared from polymeric precursors
(2002-12-01)
The effect of magnesium addition on the phase formation, microstructure and electric and ferroelectric properties of LiNbO 3 thin films prepared through polymeric precursors was analyzed. By X ray diffraction no secondary ...
Electrical and micro structural properties of (Zn, Nb, Fe)-doped SnO2 varistor systems
(Elsevier B.V., 2005-01-01)
The electrical and microstructural properties of SnO2-based varistors with the addition of 0.025 and 0.050 mol% of Fe2O3 have been characterised. Electric field (E) versus current density (J) curves showed that the effect ...
Electrical and Thermal study of carbon nanotubes reinforced poly (phenylene sulfide) nanostructured composites
(Assoc Brasil Polimeros, 2015-01-01)
In this work, the crystallization behavior and electrical conductivity of multiwalled carbon nanotubes reinforced poly (phenylene sulfide) nanostructured composites obtained by melt mixing were investigated. The incorporation ...
Effect of structural anisotropy on electrical and magnetic properties of polyaniline conducting films
(2013-03-12)
It is shown that highly conducting films of polyaniline protonated with di-esters of sulfosuccinic and sulfophthalic acids which contain alkyl- or alkoxy-type substituents exhibit highly anisotropic structural, electrical ...
The role of oxygen vacancies on the microstructure development and on the electrical properties of SnO2-based varistors
(Springer, 2005-03-01)
Variations on the microstructure development and on the electrical properties of SnO2-based varistors are discussed on the basis of the oxygen vacancies created or annihilated by the presence of different additives. Electron ...
Effect of Cr2O3 in the varistor behaviour of TiO2
(1996-12-01)
Interface formation of nanostructured heterojunction SnO 2:Eu/GaAs and electronic transport properties
(2013-02-15)
Thin films of tin dioxide (SnO2) are deposited by the sol-gel-dip-coating technique, along with GaAs layers, deposited by the resistive evaporation technique. The as-built heterojunction has potential application in ...
(1-x)PMN-xPT ceramics prepared by conventional and modified columbite route: Effect on electrical properties
(Taylor & Francis Ltd, 2006-01-01)
This study aims to demonstrate how the chemical homogeneity of B cations affects the microstructure and electrical responses of (1-x) PMN-xPT ceramics. Two methodologies were employed to synthesize three different compositions, ...