In the process of micro-arc oxidation, chemical oxidation, electrochemical oxidation, plasma oxidation exist at the same time, so the formation process of ceramic layer is very complicated, yet it is not a reasonable model can fully describe the formation of the ceramic layer.

Micro-arc oxidation process will work area by ordinary Faraday area of anodic oxidation were introduced in the high pressure discharge area, it overcomes the defect of hard anodic oxidation, greatly improve the comprehensive performance of the membrane layer. Micro-arc oxidation film layer and matrix combined with the strong, compact structure, high toughness, good wear resistance, corrosion resistance, impact resistance to high temperature and electrical insulating properties. The technology has simple operation and easy to realize the characteristics of membrane layer function adjustment, and the process is not complicated, do not cause environmental pollution, is a new surface treatment technology of green environmental protection material, in the aerospace, machinery, electronics, decoration and other fields has a broad application prospect.