Process for the manufacture of a composite material with refractory fibrous reinforcement and ceramic matrix

US4752503A · kind A · utility

Assignee

• Societe Europenne de Propulsion · FR

Inventor

• Jacques Thebault · Bordeaux, FR

Key dates

• Filing date: Jul 18, 1985
• Grant date: Jun 21, 1988
• Expiry date: Jul 18, 2005

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/2956
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A thin, refractory, intermediate adhesive layer of laminar structure is deposited in oriented fashion on the reinforcing fibers by chemical vapor deposition, this intermediate layer having a greater elongation at break than the matrix and having a thickness of between 0.2 and 3 micrometers; the material forming the intermediate layer can be laminar pyrocarbon or boron nitride; the ceramic matrix is then infiltered, preferably by chemical vapor deposition, inside the pores of the reinforcement.