Patent Number: 6,251,317

Title: Method for manufacturing a ceramic composite material

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 C. and in an oxidizing environment. The matrix and reinforcing materials consist of the same or different ceramic oxides having a melting point above 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.

Inventors: Lundberg; Robert (Trollhattan, SE), Holmquist; Magnus (Trollhattan, SE), Razzell; Anthony G. (Derbyshire, GB), Molliex; Ludovic (Paris, FR), Sudre; Olivier (Arcueil, FR), Parlier; Michel (Voisins-le-Brettonneux, FR), Rossignol; Fabrice (Lourdoueix-Saint-Michel, FR), Parmentier; Julien (Colmar, FR)

Assignee: Volvo Aero Corporation

International Classification: C04B 35/626 (20060101); C04B 35/628 (20060101); C04B 35/80 (20060101); B29C 065/00 ()

Expiration Date: 06/26/2018