US Patent Issued to RTX on Jan. 13 for "Sacrificial yarn filament for use in ceramic matrix composites, methods of manufacture thereof and articles comprising the same" (Connecticut, Massachusetts Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,321, issued on Jan. 13, was assigned to RTX Corp. (Farmington, Conn.).

"Sacrificial yarn filament for use in ceramic matrix composites, methods of manufacture thereof and articles comprising the same" was invented by Kathryn S. Read (Marlborough, Conn.), Zachary P. Konopaske (West Hartford, Conn.), Steven R. Clarke (Mansfield, Mass.) and Aaron Tomich (Sutton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed herein is a composite tow comprising a plurality of ceramic filaments; one or more sacrificial yarn filaments; where the sacrificial yarn filaments are operative to undergo decomposition or melting upon being subjected to an elevate...