Method for manufacturing a ceramic composite material

US6251317A · kind A · utility

Assignees

• Volvo Aero Corporation · SE
• ROLLS-ROYCE plc
• Societe Nationale d'Etude et de Construction de Moteurs d'Aviation - S.N.E.C.M.A · FR
• OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AÉROSPATIALES · FR

Inventors

• Robert Lundberg · Chicago, US
• Magnus Holmquist · carrer de Sertori, SE
• Anthony G. Razzell · London, GB
• Ludovic Edmond, Camille Molliex · Brunoy, FR
• Olivier H. Sudre · Thousand Oaks, US
• Michel Parlier · Voisins-le-Bretonneux, FR
• Fabrice Rossignol · Limoges, FR
• Julien Parmentier · Colmar, FR

Key dates

• Filing date: Jan 13, 2000
• Grant date: Jun 26, 2001
• Expiry date: Jan 13, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/5224
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The present method of manufacturing a ceramic composite material, composed of matrix and reinforcing materials and an intermediate weak interfice material, creates a composite material particuarly intended for use at temperatures above 1400.degree. C. and in an oxidizing environment. The matrix and reinforcing materials consist of the same or different ceramic oxides having a melting point above 1600.degree. C. The interface material provides in combination with the matrix and reinforcing materials a stress field liable to micro aciding. The reinforcing material is immersed into a powder slurry containing carbon (C) and ZrO.sub.2 so as to be coated thereby and then dried. After which, the thus created composite material is subjected to green forming and densifying steps. Finally, the composite material undergoes a heat-treatment in air leaving a porous structure of the interface material.