Zur Dynamik des elektrochemischen Metallabtrags

The thesis is about the dynamics of the electrochemical removal of metal. First different removal processes and their dynamics are presented. Some dynamics of the removal of cobalt and the removal of steel in ferric chloride are described. Especially the non linear dynamics of electropolishing are discussed. The variable potential during electropolishing was examined. Pattern formation is described. The formation of fronts in the so called Hull Cell was observed. And the new micro-electropolishing process is presented. This process is based on the use of pulsed current in combination with a micro cathode