Mechanical Carbon Materials for Aircraft Seal Applications

Modern mechanical carbon materials are being used in a wide variety of applications, including aircraft gear boxes, air turbine motor starters, and main shaft seals for both aircraft turbine engines and aircraft auxiliary power units (APUs). These self-lubricating materials are composed of fine-grained electrographite substances that are impregnated with proprietary inorganic chemicals to improve their lubricating qualities and oxidation resistance. These modern carbon-based materials are ideal for use in aircraft applications because of their low coefficient of friction, low wear rate at high sliding speed, high thermal conductivity, and resistance to oxidation in high-temperature air.