Carbon-carbon composites including isotropic carbon encapsulating layer and methods of forming the same

US9550701B2 · kind B2 · utility

Assignee

• HONEYWELL INTERNATIONAL INC. · US

Inventors

• Mark L. La Forest · Granger, US
• Slawomir T. Fryska · Granger, US
• Ryan Bourlier · Elkhart, US
• Mark E. Behnke · South Bend, US

Key dates

• Filing date: Jul 25, 2013
• Grant date: Jan 24, 2017
• Expiry date: Jan 27, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2200/0086
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A technique of forming a carbon-carbon composite material includes infusing a liquid carbonizable precursor into a porous preform, and the infused precursor is subsequently pyrolyzed to convert the precursor to isotropic carbon. The preform then can be densified with a densifying agent, followed by infusion of the liquid carbonizable precursor into the densified preform. In some examples, after pyrolyzing the liquid carbonizable precursor, isotropic carbon extends substantially throughout a volume of the carbon-carbon composite material.