Influence of zinc on electrical and microstructural properties of CaCu3Ti4O12 ceramics prepared by sol–gel process

Influence of Zirconium doping on microstructure and dielectric properties of CaCu 3 Ti 4 O 12 synthesized by the sol–gel method

“…In addition, as a wet chemical method, the sol-gel method has been successfully used to prepare CCTO ceramics [10,[31][32][33] . In comparison with traditional solid state reaction for synthesizing CCTO ceramics [1,2,8,9] , sol-gel method has several considerable advantages including excellent chemical stoichiometry, compositional homogeneity, and lower crystallization temperature since the mixing of reactants is on molecular level [34,35] .…”

Highly nonlinear property and threshold voltage of Sc2O3 doped ZnO-Bi2O3-based varistor ceramics

“…The varistor voltages (V N ) at 0.1 and 1.0 mA were measured [19,20] as well as the threshold field V T (V/mm) (V T =V N (1 mA)/d; d is the thickness of the sample in mm). The leakage current (I L ) was measured at 0.75V N (1 mA) [21][22][23] . The measurement accuracy for the voltage was ±0.5% and for the electric current, ±2%.…”

Estimating of stearic acid dosage using self-propagating combustion method in synthesis of nanocrystalline CeO2 powders

“…[1][2][3][4][5][6] A relatively favorable condition of self-propagating combustion method owns simple operation, high reaction efficiency, a lower cost and simple equipment, but a forward reaction speed, inhomogeneous and easycongregative samples. The combination technique with sol-gel and self-propagating combustion coupled method organically bands the two methods together, overcome each other's shortcomings and exploit the advantages, and the technique has gradually become a recent focus to prepare metal oxide or metal compound oxide at home and abroad in nearly 30 years.…”