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Preparation and characterization of Cu and Zn modified nickel manganite NTC powders and thick film thermistors
(Elsevier, 2013)
A simple ball milling/thermal treatment procedure was applied to obtain fine thermistor powders. Three different powder compositions were analyzed–Cu0.2Ni0.5Zn1.0Mn1.3O4, Cu0.25Ni0.5Zn1.0Mn1.25O4 and Cu0.4Ni0.5Mn2.1O4. XRD ...
Impedance response and dielectric relaxation in liquid-phase sintered Zn 2SnO 4-SnO 2 ceramics
(Springer US, 2010)
Impedance/admittance and dielectric spectroscopy were used to investigate the effect of temperature on the electrical response of liquid-phase sintered Zn 2SnO 4-SnO 2 ceramics. The measurements were performed over a wide ...
Influence of mechanical activation on functional properties of barium hexaferrite ceramics
(Elsevier, 2018)
Barium hexaferrite ceramics were prepared using mechanically activated mixtures of iron and barium titanate. The 60:40 mass% Fe:BaTiO3 powder mixtures were mechanically activated for different times (100–240 min) and ...
Electrical properties of barium titanate stannate functionally graded materials
(Elsevier, 2010)
Barium titanate stannate (BTS) functionally graded materials (FGMs) with different tin/titanium concentration gradient were prepared by the powder-stacking method and uniaxially pressing process, followed by sintering. ...
The Influence of Sintering Parameters and Subsequent Thermal Treatment on U-I Characteristics and Degradation of ZnO Varistors
(New York; London : Plenum Press, 1987)
The fabrication of varistor ceramics, characterized by stable electrical properties, was considered on the basis of sintering parameters and subsequent thermal treatment. The process of accelerated degradation of electrical ...
The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics
(Elsevier, 2014)
Ferroelectric barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using as the starting compounds powder of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide ...
Sintering Effects on Microstructure and Electrical Properties of CaCu3Ti4O12 Ceramics
(Hoboken, NJ : John Wiley & Sons, 2013)
CCTO powders were prepared by solid state reaction and mechanochemically, respectively. Synthesized powders were characterized by XRD, FE-SEM and PSA techniques. The sinterability of CCTO powders was investigated by heating ...
The effect of mechanical activation on synthesis and properties of MgAl2O4 ceramics
(Elsevier, 2019)
Magnesium aluminate, MgAl2O4 and other alumina-based spinels are ceramics with high hardness, high melting point and mechanical strenght. Spinels can also be used as dielectrics in microwave applications. The goal of this ...
Electret state in Bi4Ti3O12 ceramics
(Elsevier, 2010)
The effect of thermal treatment atmosphere (argon, air or oxygen) on the electret behavior of bismuth titanate (Bi4Ti3O12) ceramics was investigated. Polycrystalline ferroelectric ceramics were prepared by reactive liquid ...
Intergranular fractal impedance analysis of microstructure and electrical properties of rare-earth doped BaTiO3
(Hoboken, NJ : John Wiley & Sons, 2010)
Microstructure properties of barium-titanate based materials, expressed in grain boundary contacts, are of basic importance for electric properties of these material. In this study, the model of intergranular impedance ...