Carbon-graphite/silicon carbide composite article

US5968653A · kind A · utility

Assignee

• THE MORGAN CRUCIBLE COMPANY PLC · GB

Inventors

• Steven COPPELLA · Nanticoke, US
• Laurence J. Thorwart · Nanticoke, US
• Mark E. Pfaff · Nanticoke, US
• David Erich · Saint Marys, US

Key dates

• Filing date: Jan 11, 1996
• Grant date: Oct 19, 1999
• Expiry date: Jan 11, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/30
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A carbon-graphite/silicon carbide composite article is provided. The composite article includes a carbon-graphite body intimately bonded to a dense silicon carbide body by a transition/bonding region which links the two bodies. The transition/bonding region between the carbon-graphite body and the silicon carbide body typically includes a layer rich in silicon metal and a small silicon carbide/silicon metal/carbon graphite area where some of the carbon-graphite from the carbon-graphite body has been converted to silicon carbide. The carbon-graphite body may also include a variety of impregnants.