Abstract
There was determined square area of dendtitic zinc deposits obtained by means of electrolysis from zincate electrolyte with 0,3 mole/dm 3 of ZnO and 4 mole/dm 3 of NaOH. The application of electrochemical methods allows to measure square area in situ without removal of dendritic deposit from cathode. Deposit specific surface area determined with the aid of chronopotentiometry method makes up 0,144 ± 0,002 m 2 /g, and 11,61 ± 0,14 m 2 /g in accordance with impedance spectroscopy. The square area of powders obtained from dendritic deposits was equal to 21,26±0,62 m 2 /g in accordance with data of BET method. There was demonstrated that surface of dendritic deposits have fractal properties. There was computed fractal dimension of specific surface area, and with the aid of scaling ratio was made comparison of measurement findings, obtained by means of different methods
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Schedule a callMore From: Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya (Proceedings of Higher Schools. Powder Metallurgy аnd Functional Coatings)
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