Analysis of growth dynamics of dendrite copper deposit in copper sulfate solutions under the galvanostatic conditions

Modelling the dynamic growth of copper and zinc dendritic deposits under the galvanostatic electrolysis conditions

“…This leads to a significant decrease in the dendrite elongation rate. Dendritic branches thicken and eventually separate branches merge into a solid deposit [18].…”

“…There are many works dedicated to the influence of overpotential, electrolysis regime, concentration of the discharging ions and supporting electrolyte on the morphology of loose deposits [4][5][6][7][8][9][10][11]. The model description of the electrocrystallisation of dendritic deposits was proposed by different authors for both potentiostatic [2,3,12,13] and galvanostatic electrolysis conditions [14][15][16][17][18].…”

Analysis of structural variations of the precipitate based on monitoring the industrial electrolysis of copper powders of various brands

“…According to the mixed control of the cathode process, we have the relationship for the ver texes of dendrites of the growth front [3]:…”

“…The length of developing dendrites y (or the thick ness of the layer of a loose deposition) on a cylindrical electrode with diameter d 0 with specified depletion coefficient K d and the stationary limiting current den sity i lim varies [3] in time t according to the expression (1) where V is the molar volume of metal; B = d 0 y 0 + is the constant, which characterizes the magnitude of the initial nonuniformity of the electrode surface y 0 ; z is the charge of copper ions; and F is the Faraday constant. Quantity is the structural characteristic of the dendritic deposition, in which N is the density of developing tips at the deposition growth front and r t is the radius of these tips.…”

“…Pre cisely for this reason, for example, the shrinkages of wares with the same granulometric composition of the charge depend on the powder brand for which the electrolysis was performed [2]. The statistic compari son of the growth dynamics of dendrites is based on the electrolysis model of the dendritic deposition on the rod electrode [3].…”