Chemistry of inorganic compounds – Silicon or compound thereof – Binary compound
Patent
1991-05-24
1993-06-22
Chaudhuri, Olik
Chemistry of inorganic compounds
Silicon or compound thereof
Binary compound
156DIG112, C01B 3136
Patent
active
052215261
ABSTRACT:
A process for producing silicon carbide whiskers in which a particulate form of carbon is combined with a silicon component, a boron component and seeding component to form a mixture which is then subjected to temperatures above about 1300.degree. C. in a nonoxidizing atmosphere such that carbon reacts with silica to form silicon carbide whiskers. The preferred particulate carbon, silicon component, boron component and seeding component are, respectively, carbon black, fumed silica, boron oxide and cobalt, iron or nickel. The size and shape of the whiskers can be controlled by varying the size of the seeding component and the concentration of the boron component.
REFERENCES:
patent: 3778296 (1973-12-01), Thalmann et al.
patent: 4248844 (1981-02-01), Ramsey, Jr. et al.
patent: 4283375 (1981-08-01), Horne, Jr. et al.
patent: 4492681 (1985-01-01), Endou et al.
patent: 4500504 (1985-02-01), Yamamoto
patent: 4504453 (1985-03-01), Tanaka et al.
patent: 4606902 (1986-08-01), Ritter
patent: 4690811 (1987-09-01), Kida et al.
patent: 4839150 (1989-06-01), Coyle et al.
patent: 4849196 (1989-07-01), Yamada et al.
patent: 4873069 (1989-10-01), Weaver et al.
patent: 4904622 (1990-02-01), Duboto et al.
patent: 4948573 (1990-08-01), Wadkarni et al.
patent: 5037626 (1991-08-01), Ho et al.
J. V. Milewski, F. D. Gac, J. J. Petrovic and S. R. Skaggs, "Growth of Beta-Silicon Carbide Whiskers by the VLS Process," J. Materials Science, vol. 20, 1985, pp. 1160-1166.
M. A. Janney, G. C. Wei, C. R. Kennedy and L. A. Harris, "Carbothermal Synthesis of Silicon Carbide," Report ORNL-6169, Oakridge National Laboratory, Oak Ridge, Tenn., May 1985.
Coyle Roy T.
Orth Rick J.
Qi Dongxin
Tait Richard D.
Advanced Industrial Materials
Chaudhuri Olik
Hackler Walter A.
Horton Ken
LandOfFree
Production of silicon carbide whiskers using a seeding component does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Production of silicon carbide whiskers using a seeding component, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Production of silicon carbide whiskers using a seeding component will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1439908