The estimation of solid copper surface tension in copper sulfate solutions

Abstract

In metal electrodeposition in the limiting diffusion current density range, the deposition current density remains constant regardless of the deposition overpotential used. At the same time, the larger the deposition overpotential is the more disperse is the formed deposit, which is characterised by an increased specific surface. The difference in the specific surface of disperse deposits obtained at two different overpotentials in the limiting diffusion current density range is correlated with the difference between the deposition overpotentials.Amethod for the estimation of the surface tension of solid copper in copper sulfate solutions is also proposed.

Keywords

• interfacial energy copper-copper sulfate solution
• specific surface of copper powder