US Patent Issued to Rolls-Royce High Temperature Composites on Sept. 30 for "Method to fabricate a machinable ceramic matrix composite" (California Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,752, issued on Sept. 30, was assigned to Rolls-Royce High Temperature Composites Inc. (Cypress, Calif.).

"Method to fabricate a machinable ceramic matrix composite" was invented by Sungbo Shim (Cypress, Calif.) and Pathikumar Sellappan (Cypress, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method to form a machinable ceramic matrix composite comprises forming a porous ceramic multilayer on a surface of a fiber preform. In one example, the porous ceramic multilayer comprises a gradient in porosity in a direction normal to the surface. In another example, the porous ceramic multilayer includes low-wettability particles having a high contac...