Processing of Sic/Sic ceramic matrix composites by use of colloidal carbon black

摘要

A method of forming a ceramic matrix composite (CMC) includes the steps of (a) providing a woven or braided cloth reinforced with fibers; (b) coating the fibers with a ceramics material; (c) immersing the preform into a colloidal suspension of carbon black in water; (d) removing the preform from the suspension, placing the preform in a vacuum chamber and evacuating the chamber until the slurry begins to boil or foam; and (e) releasing the vacuum and withdrawing the preform.