Micro Arc Oxidation (MAO)

Micro Arc Oxidation (MAO) is a high-energy surface modification technique that transforms metal surfaces into protective ceramic layers. The process involves plasma discharges directly on the substrate, enabling rapid oxide growth with strong metallurgical bonding. Unlike conventional coatings, MAO can operate even on complex geometries due to its non-line-of-sight nature. It eliminates the need for toxic chemicals, making it a sustainable alternative to traditional anodizing. The resulting coatings offer improved functional performance under extreme mechanical, thermal, and environmental conditions. With growing industrial acceptance, MAO is evolving into a promising technology for high-demand sectors requiring lightweight and durable materials.