VPI-RTM-CVD brake disc preform densification

US7700014B2 · kind B2 · utility

Assignee

• HONEYWELL INTERNATIONAL INC. · US

Inventors

• Allen H. Simpson · Buchanan, US
• Slawomir T. Fryska · Granger, US
• Mark L. La Forest · Granger, US
• Barry P. Soos · Mishawaka, US

Key dates

• Filing date: Apr 13, 2006
• Grant date: Apr 20, 2010
• Expiry date: Jul 7, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2235/77
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Method of manufacturing dense carbon-carbon composite material by: infiltrating a fibrous preform with pitch to form pitch-infiltrated preform; carbonizing the pitch-infiltrated preform; injecting resin or pitch into the preform in a mold; oxygen stabilizing the filled preform and carbonizing and heat-treating the oxygen-stabilized impregnated preform; and subjecting the preform to a single final cycle of chemical vapor deposition. This process reduces densification time as compared to comparable conventional carbon-carbon composite manufacturing procedures.