INTEGRAL TEXTILE CERAMIC STRUCTURES FOR HEAT EXCHANGER APPLICATIONS

摘要

Integrally formed ceramic matrix composite structures are being developed for a range of hotstructure applications involving active cooling. In this paper, recent progress in integral textile approaches for rocket nozzles and turbine engine combustors is summarized. Advantages of integral textile structures include: 1) joints between ceramic and other materials in hot zones can be avoided; 2) thin skins (< 1 mm) can be formed that are strong and tough, enabling tolerance of higher heat fluxes; 3) compliant structures can be designed, which can limit the development of thermal mismatch stresses; and 4) fabrication costs can be lowered by reducing part counts and steps in processing.