Прегледај по Аутор "Tomić, M. V."

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    Electrodeposition of Fe Powder from Citrate Containing Electrolytes
    (Electrochemical Science Group, Serbia, 2010) Pavlović, Lj. J.; Pavlović, M. M.; Pavlović, M. G.; Nikolić, N. D.; Tomić, M. V.
    Polarization characteristics of the electrodeposition processes of Fe powders from different citrate electrolytes and the morphology of the obtained powders were investigated. The effect of complexing agents on the cathodic polarization, the current efficiency and morphology of electrodeposited Fe powders were investigated. The morphology of obtained powders depends on the kind of supporting electrolyte, but not on the current density in investigated range. A characteristic feature of powders deposited from citrate-chloride supporting electrolyte is cauliflower-like compressed structure. On the other side, Fe powders electrodeposited from citrate-sulfate supporting electrolyte appeared in the form of spongy-like agglomerates. Possibility of Fe powders protection from corrosion in the process of production and during long-term storing has been shown.
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    Morphology and growth of electrodeposited silver powder particles
    (Elsevier, 2007) Maksimović, V. M.; Pavlović, Lj. J.; Tomić, M. V.; Jović, V. D.
    The effect of overpotential pulsing and periodic current reversal on the morphology of silver powders was investigated using a scanning electron microscope (SEM). It is shown that the profile of pulses or current reversal determines the micromorphology of the electrodeposited silver particles. Generally, three forms of silver were detected: (1) dendrites, (2) equiaxial crystals (independent and/or agglomerates) and (3) rods. The shape of particle seems to be the result of an interplay between the surface energy and growth kinetics.
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    The Effect of Periodically Changing Regimes on the Electrodeposition of Silver Powder
    (Electrochemical Science Group, Serbia, 2011) Pavlović, LJ. J.; Pavlović, M. G.; Pavlović, M. M.; Nikolić, N. D.; Tomić, M. V.
    The effect of different deposition regimes (constant and reversing currents, constant and pulsating overpotential), on the powdered and dendritic silver electrodeposits morphology were investigated. The morphology of electrodeposited silver powder was studied utilizing a scanning electron microscope. The results obtained in constant regimes were compared with those obtained in pulsating and reversing regimes. The size of dendrites decreased strongly with increased overpotential or current. It was also shown that the agglomeration of silver dendrites in spongy-like agglomerates was strongly decreased by pulsating overpotential electrodeposition or reversing current. The possibility of obtaininig powder particles, with different properties, depending on conditions of electrolysis was demonstrated.