Patent · US Expired

Polycrystalline silicon carbide fibers

US5162269A · kind A · utility

7Cited by

7References

6Claims

0Family size

Assignee

Dow Corning Corporation · US

Inventors

David C. Deleeuw · Midland, US
Jonathan Lipowitz · Midland, US
Paul P. Lu · San Diego, US

Key dates

Filing date	Jul 15, 1991
Grant date	Nov 10, 1992
Priority date	—
Expiry date	Jul 15, 2011

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B35/571
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

This invention relates to the preparation of thermally stable, substantially polycrystalline silicon carbide ceramic fibers derived from a polycarbosilane resin. The unexpected thermal stability of these fibers is achieved by the incorporation of boron prior to ceramification.

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