Microarray oxidation is a complex process whose characteristics depend on external factors (elemental composition, concentration, pH and electrolyte temperature, microarray oxidation regime: polarity, frequency, ratio, amplitude and pulse shape voltage and current, their ratio, duration of treatment, etc.), as well as internal factors (alloy composition, thermal treatment, roughness, porosity of oxidized material, etc.). These factors determine the thickness of the layers, their composition, their structure, density and porosity, micro-hardness, resistance to adhesion to the support, wear resistance, corrosion resistance, electrical conductivity, thermal conductivity, strain.
A particular feature of the micro-arc oxidation process is represented by participation in the process of forming the surface layer of the electric discharge in the micro-arc, which considerably influences the formed layer. As a result, the composition and structure of the oxide layers differs significantly and the properties improve considerably compared to those of the layers obtained by anodic oxidation. Another particularity of the micro-arc oxidation process is the absence of the need for a thorough preliminary surface treatment at the beginning of the technological chain.