Process for preparation of a metal carbide-containing molded product
AssigneeToyo Boseki Kabushiki Kaisha
InventorsKunio Oohara, Tatsuhiko Shizuki, Hideyuki Mitamura, Masahiro Sugino
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Abstract
A process for preparation of a metal carbide-containing molded product which comprises heating a molded composition comprising at least one powdery metal selected from the group consisting of B, Ti, Si, Zr, Hf, V, Nb, Ta, Mo, W, Cr, Fe and U and having an average particle size of not more than about 50 .mu. and an acrylonitrile polymer at a temperature of about 200.degree. to 400.degree. C and then calcining the resulting product at a temperature of about 900.degree. to 2500.degree. C in an inert atmosphere.
Claims13
A process for the preparation of a metal carbide-containing molded product which comprises heating a molded composition comprising at least one powdery metal selected from the group consisting of B, Ti, Si, Zr, Hf, V, Nb, Ta, Mo, W, Cr, Fe and U and having an average particle size of not more than about 50.mu. and an acrylonitrile polymer at a temperture of about 200.degree. to 400.degree. C. and then calcining the resulting product at a temperature of about 900.degree. to 2500.degree. C. in an inert atmosphere, said powdery metal being present in an amount of from about 5 to 90% by weight based on the total weight of the acrylonitrile polymer and the powdery metal.
A process for the preparation of a metal carbide-containing molded product which comprises forming a molded composition comprising at least one powdery metal selected from the group consisting of B, Ti, Si, Zr, Hf, V, Nb, Ta, Mo, W, Cr, Fe, and U, having an average particle size of not more than about 50 microns and an acrylonitrile polymer, heating said molded composition at a temperature of about 200.degree. to 400.degree. C., and then calcining the resulting product at a temperature of about 900.degree. to 2500.degree. C. in an inert atmosphere to directly form said metal carbide-containing molded product, said powdery metal being present in an amount of from about 5 to 90% by weight based on the total weight of the acrylonitrile polymer and the powdery metal.
Dependencies are inferred from the claim text.