Process for preparing ceramic fibers

Details Process for preparing ceramic fibers Process for preparing ceramic fibers

1996-03-11

1998-02-24

Langel, Wayne

Chemistry of inorganic compounds

Silicon or compound thereof

Binary compound

423344, 423412, 501 951, C01B 3136, C04B 35565

Patent

active

057209332

ABSTRACT:
A process for preparing silicon carbide fiber by the carbothermal reduction of silica fiber. In the first step of the process, a specified silica fiber is contacted with a source of elemental carbon to produce a reactant mass; the silica fiber is comprised of at least about 99.5 weight percent of silica, has a density of at least about 2.15 grams per cubic centimeter, has a diameter of from about 1 to about 100 microns and an aspect ratio of at least about 30. From about 3.2 to about 5.0 moles of carbon are present in the carbon source for each mole of the silica. The reactant mass is heated at a temperature of from about 1,400 degrees centigrade to about 2,300 degrees centigrade for at least about 0.5 hours.

REFERENCES:
patent: 3161473 (1964-12-01), Pultz
patent: 4492681 (1985-01-01), Endou et al.
patent: 4640830 (1987-02-01), Arakawa
patent: 5063107 (1991-11-01), Birchall et al.
patent: 5167881 (1992-12-01), Atwell et al.
patent: 5268336 (1993-12-01), Deleeuw
patent: 5278110 (1994-01-01), Toreki et al.
patent: 5283044 (1994-02-01), Okamura et al.

Affiliated with

Also associated with

Rating

Process for preparing ceramic fibers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing ceramic fibers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing ceramic fibers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1873437