The inlet-air section of a utility boiler is a harsh environment for the dampers that control the flow of preheated air into the combustors. Over time, the hot air dries out the lubricant in the metal ...

Graphite/metal alloy bearings handle harsh environments that lubricated bearings can’t. For example, a grease-filled ball bearing was used on an oven-door latch—but in tests, the bearing seized and ...

In order to protect graphite, scientists are forming faceted metal islands of the rare-earth element dysprosium under layers of graphite by first adding defects and then depositing metal at elevated ...