SiC fibers having low oxygen content and methods of preparation

Details SiC fibers having low oxygen content and methods of preparation SiC fibers having low oxygen content and methods of preparation

1993-03-05

1994-01-11

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 95, C04B 3556

Patent

active

052781100

ABSTRACT:
A method of preparing preceramic SiC fibers having a very low oxygen content by forming fibers from a solution of a polycarbosilane and a vinylic sic precursor in a mutual volatile solvent, heating fibers in an oxygen-free inert s atmosphere to effect a cross-linking reaction therebetween. Also disclosed is a method of preparing SiC fibers having superior high temperature properties and a very low oxygen content comprising beating the above-described cross-linked preceramic fibers in an inert atmosphere substantially free of oxygen for a time and at a temperature sufficient to pyrolyze the cross-linked fibers to SiC fibers. The disclosure also describes the novel fibers produced by the above-described methods.

REFERENCES:
patent: 4100233 (1978-07-01), Vajima et al.
patent: 5063107 (1991-11-01), Birchall et al.
patent: 5071600 (1991-12-01), Deleeuw et al.
patent: 5139871 (1992-08-01), Wallace et al.

Affiliated with

Also associated with

Rating

SiC fibers having low oxygen content and methods of preparation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with SiC fibers having low oxygen content and methods of preparation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and SiC fibers having low oxygen content and methods of preparation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1631020