Patent · US Active

Composites and methods of forming composites via pitch infiltration

US11655871B2 · kind B2 · utility

0Cited by
8References
14Claims
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Assignee

Inventors

Key dates

Filing dateMar 13, 2020
Grant dateMay 23, 2023
Priority date—
Expiry dateJul 23, 2041

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D2200/0091
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A method of pitch infiltration of a densified preform may comprise disposing a pitch on a densified preform surface; heating the pitch and making the pitch into an anisotropic network structure; guiding the pitch through the densified preform in a predetermined direction; aligning the pitch in a predetermined orientation; and stabilizing the pitch. The method may result in a carbon/carbon part having increase wear life, enhanced oxidation protection, and/or reduced moisture sensitivity.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.