Oxidfilme
Oxidfilme, or oxide film, are thin layers of oxide that form on a material surface as a result of oxidation. They are common on metals, semiconductors and ceramics and can arise naturally in air or water, or be produced deliberately by processes such as anodizing, thermal oxidation or chemical passivation.
Formation occurs when oxygen from the environment reacts with the substrate material. Thickness ranges from a
Properties and function: Oxide films often act as barriers to diffusion, reducing ongoing oxidation and corrosion.
Examples: Aluminum forms Al2O3; stainless steels develop a chromium-rich Cr2O3 passive film; titanium forms TiO2; silicon
Measurement and applications: Oxide films are characterized by XPS, ellipsometry, TEM, and other surface techniques. Applications