Compositions: ceramic – Ceramic compositions – Carbide or oxycarbide containing
Patent
1994-09-14
1996-06-04
Lewis, Michael
Compositions: ceramic
Ceramic compositions
Carbide or oxycarbide containing
423439, 423440, C01B 3130
Patent
active
055232698
ABSTRACT:
A method of making a compound selected from metal and silicon carbides and nitrides includes the steps of providing a solution of a coal-derived material in a solvent, the coal-derived material having a composition, free of solvent, of 70 to 91 percent by mass of carbon, 2 to 6 percent by mass of hydrogen and 3 to 20 percent by mass of oxygen, and a source of an oxide of silicon or the metal, causing the coal-derived material in solution and the source of the oxide to interact, removing the solvent to form a precursor and heat treating the precursor to produce the compound.
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patent: 4762528 (1988-08-01), Reichl
patent: 5017525 (1991-05-01), Birchall et al.
Materials Science & Technology, L. T. Kozma, "Silicon Carbide Defies Extreme Heat And Corrosion", pp. 37, 39, 41 (no date).
Journal of Materials Science Letters, vol. 8, 1989, pp. 944-946, Yoshiyuki Sugahara, et al., "Carbothermal Reduction Process Of Precursors Derived From Alkoxides For Synthesis Of Boron-Doped SiC Powder" Jan. 1989.
Chemical Abstracts, AN 136995w, vol. 111, "Manufacture Of Silicon Carbide", Roy T. Coyle, et al., Jun. 13, 1989.
Chemical Abstracts, AN 236207p, "Manufacture Of High-Surface-Area Silicon Carbide Ceramics, Suitable For Catalyst Supports, From Alkoxysilane Gels", Joseph R. Fox, et al., vol. 110, Apr. 4, 1989.
Cukan Vladimir
Morgan David L.
Enerkom (Proprietary Limited
Hendrickson Stuart L.
Lewis Michael
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