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Oxidation affects many substances but can also be beneficial. Aluminum, for example, forms a passive oxide film that helps it resist seawater. NAB is often used in ships and forms an aluminum oxide layer that resists seawater and pitting, a process in which local fissures form. Now, researchers at Iowa State University, Arizona State University, and Virginia Tech have received a $2 million NSF grant to develop self-lubricating, wear-resistant metals that work at high temperatures. Self-lubricating polymers such as POM, PEEK, and PTFE are already widely used because they don’t need grease and can work as gears or other moving parts that experience a lot of friction. You could make a POM (acetal) gearbox, bearings, or a sliding system that would be inexpensive to make and maintain while last