Process for the manufacture of a refractory composite material protected against corrosion

US5246736A · kind A · utility

Assignee

• Societe Europenne de Propulsion · FR

Inventors

• Stephane Goujard · Moissy-Cramayel, FR
• Lionel Vandenbulcke · Olivet, FR
• Jacques Rey · Mérignac, FR
• Jean-Luc Charvet · Saint-Médard-en-Jalles, FR
• Henri Tawil · Le Bouscat, FR

Key dates

• Filing date: Oct 25, 1991
• Grant date: Sep 21, 1993
• Expiry date: Oct 25, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C16/32
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The manufacture of a refractory composite material protected against corrosion and comprising fibrous reinforcement densified by a matrix, comprises a step of forming, either within the matrix or at its surface, at least one continuous layer constituted by a ternary silicon-boron-carbon system obtained by chemical vapor deposition or infiltration. The elements silicon and boron are thereby distributed uniformly, with the boron content in the Si-B-C system being not less than 5% in atom percentage.