Now showing items 31-35 of 35
Morphology investigation of mechanically activated ZnO-SnO2 system
Powder mixtures of zinc oxide and tin oxide in the molar ratio, ZnO:SnO2 = 2:1, were mechanically activated in a planetary ball mill in the time intervals of 0-160 min. The adsorption-desorption isotherms, specific surface ...
LaMO3 (M = Mg, Ti, Fe) perovskite type oxides: Preparation, characterization and catalytic properties in methane deep oxidation
Two new series of perovskite-type oxides LaMO3 (M = Mg, Ti, Fe) with different ratio Mg/Fe (MF) and Ti/Fe (TF) in the B cation site were prepared by annealing the precursor, obtained by the mechanochemical activation (MCA) ...
Ultrasonic de-agglomeration of barium titanate powder
(Ultrasonics Sonochemistry, 2008)
BaTiO3 (BT) powder, with average particle size of 1.4 mu m, was synthesized by solid-state reaction. A high-intensity ultrasound irradiation (ultrasonication) was used to de-agglomerate micro-sized powder to nano-sized ...
Thermal diffusivity of sintered 12CaO×7AI2O3
The thermal diffusivity and free carrier diffusion coefficient of 12CaO×7 Al2O3 (C12A7) sintered for different times in air or hydrogen followed by treatment with UV light were determined from photoacoustic phase and ...
Influence of solvent on the structural and morphological properties of AgI particles prepared using ultrasonic spray pyrolysis
(Materials Chemistry and Physics, 2008)
Silver iodide particles were synthesized in the process of ultrasonic spray pyrolysis using aqueous solutions of thermodynamically stable silver iodide clusters as precursor. The AgI particles were collected in solvents ...