Compositions: ceramic – Ceramic compositions – Refractory
Patent
1991-01-23
1992-08-04
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Refractory
264DIG19, C04B 3502
Patent
active
051358956
ABSTRACT:
A high temperature, preferably polycrystalline, ceramic fiber having a selectable diameter of between 1 and 200 microns. The fiber is stable in an inert atmosphere at a temperature above about 1700.degree. C. and is often stable even in air at a temperature above 1500.degree. C. The fiber comprises a sintered ceramic powder having a maximum particle size less than the diameter of the fiber and an average particle size less than 0.2 times the diameter of the fiber. The ceramic powder is also stable in an inert atmosphere at a temperature above about 1700.degree. C. At least 90% of the ceramic is selected from borides, nitrides, carbides, and silicides. The fiber is characterized by a smooth surface and is preferably out of round.
The invention further comprises a textilable sinterable filament, comprising a flexible polymer matrix containing high temperature sinterable ceramic powder particles. The ceramic powder particles are selected from ceramic borides, nitrides, carbides, and silicides. The diameter of the filament is from 2 to 300 microns. The invention also comprises the method for making textilable filament by fiberizing a mixture of a polymer and a sinterable non-oxide fiber and the method wherein the high temperature ceramic fiber is prepared by sintering the textilable sinterable filament as previously described. The invention also includes composites containing such filaments.
REFERENCES:
patent: 3529044 (1970-09-01), Santangelo
patent: 3760049 (1973-09-01), Borer et al.
patent: 3808015 (1974-04-01), Seufert
patent: 3846527 (1974-11-01), Winter et al.
patent: 3909278 (1975-09-01), Johnson
patent: 3992498 (1976-11-01), Molton et al.
patent: 4010233 (1977-03-01), Winter et al.
patent: 4071594 (1978-01-01), Pearson et al.
patent: 4117057 (1978-09-01), Yajima et al.
patent: 4123286 (1978-10-01), Coppola et al.
patent: 4158687 (1979-06-01), Yajima et al.
American Ceramic Society Bulletin, vol. 66, No. 8, Aug. 1987.
Boecker Wolfgang D. G.
Frechette Francis J.
Kasprzyk Martin R.
McMurtry Carl H.
Dixon Jr. William R.
Evans Larry
Green Anthony J.
McCollister Scott A.
The Standard Oil Company
LandOfFree
Non-oxide sintered 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 Non-oxide sintered ceramic fibers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-oxide sintered ceramic fibers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-778243