Effect of the polarization conditions on the structural properties of zinc dendritic deposits / Ostanina T.N., Rudoi V.M., Darintseva A.B., Cheretaeva A.O., Demakov S.L., Patrushev A.V. // Powder Metallurgy and Metal Ceramics. - 2014. - V. 52, l. 9-10. - P. 489-497.

ISSN:

10681302

Type:

Article

Abstract:

The influence of the polarization conditions on growth dynamics and structure of electrolytic zinc dendritic deposits obtained at room temperature from electrolyte with 0.3 mol/l zinc oxide and 4 mol/l sodium hydroxide is studied. The electrodeposition was performed at constant and pulsed current and potential. Constant-current chronopotentiometry was used to determine the surface area of the dendritic deposits in situ. The zinc microstructure was studied with electron microscopy. The deposit surface produced in pulsed current conditions intensively grew during the first 5 minutes of electrolysis and then changed insignificantly. In conditions of potentiostatic electrolysis, the coefficient K, which is the ratio of the deposit surface area to the substrate area, increased linearly with time; in pulsed potential conditions, it increased as a power-law functions. The deposits obtained in potentiostatic conditions show the lowest density that slightly varies with thickness. The density of the deposits crystallized in pulsed current conditions sharply increased upon the completion of active dendrite extension. © 2014 Springer Science+Business Media New York.

Author keywords:

dendritic deposits; electrodeposition; microstructure; pulsed conditions; zinc

Index keywords:

Chronopotentiometry; Electrolytic zinc; Polarization conditions; Potential conditions; Potentiostatic conditions; Potentiostatic electrolysis; Power-law functions; Pulsed conditions; Electrodeposition

DOI:

10.1007/s11106-014-9551-0

Смотреть в Scopus:

https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897619406&doi=10.1007%2fs11106-014-9551-0&partnerID=40&md5=bc9a06a777d3ce8dea659392fdad700f

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Поле	Значение
Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84897619406&doi=10.1007%2fs11106-014-9551-0&partnerID=40&md5=bc9a06a777d3ce8dea659392fdad700f
Affiliations	First President B. N. Yeltsin Ural Federal University, Yekaterinburg, Russian Federation
Author Keywords	dendritic deposits; electrodeposition; microstructure; pulsed conditions; zinc
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Correspondence Address	Ostanina, T.N.; First President B. N. Yeltsin Ural Federal University, Yekaterinburg, Russian Federation; email: ostni@mail.ru
Language of Original Document	English
Abbreviated Source Title	Powder Metall. Met. Ceram.
Source	Scopus