Pattern formation during the electrodeposition of a silver-antimony alloy

It is described how during the electrodeposition of a silver-antimony alloy patterns can develop in the deposit. The patterns occur as moving bands, target patterns, and spiral waves, and the characterized using various types of microscopy. Forthe patterns to develop, the hydrodynamic conditions close to the electrode appear to be of prime importance. The wave characteristics are discussed in relation with recent studies on patterns on (single crystal) catalyst surface and convection-induced chemical instabilities.