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Separation of dielectric and space charge polarizations in CaCu3Ti4O12/CaTiO3 composite polycrystalline systems
(American Institute of Physics (AIP), 2007-04-02)
The complex analysis of dielectric/capacitance is a very useful approach to separate different polarization contributions existing in polycrystalline ceramics. In this letter, the authors use this type of spectroscopic ...
Tunable capacitor-varistor response of CaCu3Ti4O12/CaTiO3 ceramic composites with SnO2 addition
(2020-12-01)
CaCu3Ti4O12/CaTiO3 (CCTO/CTO) composites with additions of x% SnO2 (x = 0, 1, 2, and 5%) were prepared using the low cost, nontoxic, and simple solid-state reaction. The high dielectric loss associated with CCTO-based ...
Dielectric and non-ohmic analysis of Sr2+ influences on CaCu3Ti4O12-based ceramic composites
(2021-02-01)
In this study, CaCu3Ti4O12 ceramic composites were prepared through solid-state reaction by adding Sr2+ and removing Cu2+. Application of the Rietveld method and structure refinement revealed the presence of pure CaCu3Ti4O12 ...
Influence of vanadium on electrical and microstructural properties of CaCu3Ti4O12/CaTiO3
(Elsevier B.V. Sa, 2010-05-14)
Microstructure, electrical properties and dielectric behavior of undoped and VO2-doped CaCu3Ti4O12/CaTiO3 (CCTO/CTO) systems, were investigated. Discs doped with 0-3 mol% of VO2 were sintered at 1075 degrees C CaTiO3 (CTO) ...
Influence of vanadium on electrical and microstructural properties of CaCu3Ti4O12/CaTiO3
(Elsevier B.V. Sa, 2010-05-14)
Microstructure, electrical properties and dielectric behavior of undoped and VO2-doped CaCu3Ti4O12/CaTiO3 (CCTO/CTO) systems, were investigated. Discs doped with 0-3 mol% of VO2 were sintered at 1075 degrees C CaTiO3 (CTO) ...
Correlation between photoluminescence and structural defects in Ca1+x Cu3-x Ti4 O12 systems
(Wiley-BlackwellMalden, 2013-01)
Ca1+x Cu3-x Ti4 O12 powders were synthesized by a conventional solid-state reaction. X-ray diffraction (XRD) was performed to verify the formation of cubic Ca Cu3 Ti4 O12 (CCTO) and orthorhombic Ca Ti O3 (CTO) phases at ...
Non-Ohmic and dielectric properties of a Ca2Cu2Ti4O12 polycrystalline system
(American Institute of Physics (AIP), 2006-11-20)
An investigation was made into the non-Ohmic and dielectric properties of a Ca2Cu2Ti4O12 perovskite-type system. Compared to the traditional CaCu3Ti4O12-based composition, the imbalance between the Ca and Cu atoms caused ...
Non-Ohmic and dielectric properties of a Ca2Cu2Ti4O12 polycrystalline system
(American Institute of Physics (AIP), 2006-11-20)
An investigation was made into the non-Ohmic and dielectric properties of a Ca2Cu2Ti4O12 perovskite-type system. Compared to the traditional CaCu3Ti4O12-based composition, the imbalance between the Ca and Cu atoms caused ...
Sol-gel synthesis of mesoporous CaCu3Ti4O12 thin films and their gas sensing response
(Academic Press Inc. Elsevier B.V., 2010-06-01)
A new sol-gel synthesis procedure of stable calcium copper titanate (CaCu3Ti4O12-CCTO) precursor sols for the fabrication of porous films was developed The composition of the sot was selected in order to avoid the precipitation ...
Sol-gel synthesis of mesoporous CaCu3Ti4O12 thin films and their gas sensing response
(Academic Press Inc. Elsevier B.V., 2010-06-01)
A new sol-gel synthesis procedure of stable calcium copper titanate (CaCu3Ti4O12-CCTO) precursor sols for the fabrication of porous films was developed The composition of the sot was selected in order to avoid the precipitation ...