Electrodeposition of coatings from sulfite gold-plating electrolyte and their properties

摘要

Mechanism of the electrolytic gold-plating and some properties of coatings deposited from a sulfite gold-plating electrolyte were studied. It was shown that soft coatings with low internal stresses can be produced from sulfite electrolytes. The mechanism of the electrolytic gold-plating process was described in terms of the nucleation-growth model in which the metal is deposited at growth points via a single-electron reaction in which sulfite complexes of gold(I) are reduced.