Quality Water Lubrication of Special Triboceramics, Alloys and Self-Lubricating Composites

"Steam technology dating back to the 19th century has been shown to be effective in both propulsion and power generating systems, but was of low efficiency. As newer materials are being developed, higher performing, smaller systems or even novel machinesthat break current molds such as microscale space propulsion systems or portable power generating systems are possible. Combining a 19th century technology with the advanced materials, design tools and manufacturing processes of the 21st century couldtruly result in revolutionary new steam applications. A sound understanding and tribological data base is needed to ensure the success of these machines. The overall objective of this program is to establish the tribological foundations for advancedwater lubricated meso/macroscale steam engines. This goal will be achieved by determining the load, speed, temperature dependent friction and wear of triboceramics, b) metal alloys resistant to gross water-induced corrosion, and c) other self-lubricatingmaterials such as certain forms of carbons, graphites and polymeric composites. One of MiTi's specialized, high-speed, in-house tribometers will be modified to accommodate Phase I and Phase II friction and wear testing under 100C steam. Tribological characterization of ceramic/metal/composite materials is essential to the development of durable steam engines. Besides military applications, commercial steam engines will have worldwide poten