ABSTRACT
Understanding mechanisms of self-organization during different physical and chemical processes in thermodynamically unstable systems belongs to the most important scientific problems. This chapter introduces the dimension-measuring results of Au-dispersed particles formed in electrolysis under the change of dissolving current density by a factor of 10. It shows that the dimensions of the forming particles are approximately in an inverse ratio to the current density root. The chapter explains both the revealed regularity and other factors bonded to the dispersed structure formed by dissolution. Electrochemical dissolution was modeled in a standard three-electrode cell containing nitrate electrolyte at temperature 298 K. During the electrolytic dissolution, gold disperse particles are formed as a result of the diffusion of Au atoms, which lost their surrounding coordination, along the initial alloy surface. It can be assumed that similar phenomena take place in other dissolution processes of one component of solid solution or compound in the presence of liquid phase.
