Coating processes – Heat decomposition of applied coating or base material – Coating decomposed to form carbide or coating carbonized
Patent
1991-10-11
1993-10-26
Owens, Terry J.
Coating processes
Heat decomposition of applied coating or base material
Coating decomposed to form carbide or coating carbonized
4273977, 423345, B05D 302
Patent
active
052564487
ABSTRACT:
Method of making a coherent film of silicon carbide on a surface, comprising forming a solution in the solvent of from 0.05 to 0.3 moles alkoxy silicon per mole of water, the solution also containing an acid catalyst and a carbonaceous material in the ratio 1 to 3 moles carbon per mole of silicon. Hydrolysis is allowed to occur followed by removal of volatile material after hydrolysis at this or an earlier stage; applying the solution to the surface; and thereafter heating at at least 1300.degree. C. The solvent comprises 0.3 to 1 mole of acetone per mole of water.
REFERENCES:
patent: 3455723 (1959-07-01), Kern
patent: 4410502 (1983-10-01), Yamaguchi et al.
patent: 4471023 (1984-09-01), Shuford
patent: 4500504 (1985-02-01), Yamamoto
patent: 4544412 (1985-10-01), Veltri et al.
patent: 4585675 (1986-04-01), Shuford
patent: 4690909 (1987-09-01), Okuno et al.
patent: 4694040 (1987-09-01), Hashimoto et al.
patent: 4818732 (1989-04-01), Fox et al.
patent: 5045399 (1991-09-01), Niebylski
White, D. et al., "Preparation of Silicon Carbide from Organosilicon Gels: I, Synthesis and Characterization of Precursor Gels," Advanced Ceramic Materials, vol. 2 (1987) pp. 45-52.
White, D. et al., "Preparation of Silicon Carbide from Organosilicon Gels: II, Gel Pyrolysis and SiC Characterization," Advanced Ceramic Materials, vol. 2 (1987) pp. 53-59.
Wei, G., "Process for Preparing Fine Grain Silicon Carbide Powder," U.S.-A644576 (undated).
Sugahara, Y. et al., "The Preparation of Boron-Doped Silicon Carbide Powder by the Carbothermal Reduction of Oxides Derived from the Hydrolyzed Methyltriethoxysilane", J. Non-Crystalline Solids, vol. 100 (1988) pp. 542-546).
Park, S. et al., "Reaction Sintering of Gel Derived Ceramic Composites", J. Non-Crystalline Solids, vol. 100 (1988) pp. 345-351.
Brinker, C., "Hydrolysis and Condensation of Silicates: Effects on Structure," J. Non-Crystalline Solids, vol. 100 (1988) pp. 31-50.
Strife, J. et al., "Ceramic Coatings for Carbon-Carbon Composites," Ceramic Bull., vol. 67 (1988) pp. 369-374.
Fox, J. et al., "Pyrolysis of Organosilicon Gels to Silicon Carbide," Mat. Res. Soc. Symp. Proc., vol. 73 (1964) pp. 395-400.
Wei, G. et al., "Synthesis of Sinterable SiC Powders by Carbothermic Reduction of Gel-Derived Precursors and Pyrolysis of Polycarbosilane", Am. Ceram. Soc. Bull., vol. 63 (1984) pp. 1054-1061.
Chen, K. et al., "Silicon Carbide via the Hydrolysis-Condensation Process of Dimethyldiethoxysilane/Tetraethoxysilane Copolymers", Mat. Res. Soc. Symp. Proc., vol. 121 (1988) pp. 571-574.
JP 58213620, English Derwent Abstract (Dec. 1983).
Chem ABS 176318c (1984).
JP 58091026, English Derwent Abstract (May 1983).
World Patents Index Latest Week 5050, Derwent Publications Ltd., London, GB; AN 90-372899 & JP A-2-270 508 (Ibiden Co Ltd., JP) Nov. 5, 1990.
British Technology Group Ltd.
Owens Terry J.
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