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Effects of environment on creep behavior of three oxide–oxide ceramic matrix composites at 1200 °C

M.B. Ruggles-Wrenn     Air Force Institute of Technology, Wright-Patterson Air Force Base, OH, USA

Abstract

Oxide–oxide ceramic matrix composites (CMCs) are among leading candidate materials for use in high-temperature structural applications, especially in components requiring a long service life in oxidizing environments. High-temperature mechanical behavior and properties of three oxide–oxide composites of alumina and mullite are discussed. The effects of steam on high-temperature creep performance of the CMCs are evaluated. The composites consist of a porous oxide matrix reinforced with laminated, woven mullite/alumina (Nextel™720) fibers, have ...

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