中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 24 No. 3 March 2014 |
（1. ICTM- Institute of Electrochemistry, University of Belgrade, Njego？eva 12, Belgrade, Serbia;
2. Faculty of Sciences, University of Novi Sad, Trg D. Obradovi？a 3, Novi Sad, Serbia;
3. Department of material science, INN Vin？a, University of Belgrade, Belgrade, Serbia;
4. Institute for Multidisciplinary Research, University of Belgrade, Kneza Vi？eslava 1a, Belgrade, Serbia）
Abstract:Lead powder obtained by potentiostatic electrodeposition from alkaline electrolyte, based on hydroxide ions, was investigated. The shape of lead crystals strongly depends on overpotentials of electrodeposition. The regular crystals are formed in the ohmic control. The shape of dendrites formed in the control of diffusion has a function of overpotentials of the electrodeposition. Increasing overpotential leads to branching of dendrites from primary type to those with developed tertiary branches. Formation of the very branchy dendrites of the strong (111) preferred orientation is explained on the basis of the affiliation of this electrolyte to the group of the complex Pb electrolytes.
Key words: lead powder; electrodeposition; crystal; dendrite
