Organic silicon polymer, inorganic fiber with silicon carbide base, and method of manufacture thereof
AssigneeUbe Industries, Ltd.
InventorsKiyoshi Kumagawa, Masaki Shibuya, Michiyuki Suzuki, Hiroyuki Yamaoka
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Abstract
An oxide-containing organosilicon polymer containing 1 to 45% by weight of metal oxide particles, an oxide-containing silicon-carbide-based inorganic fiber obtained by using the above organosilicon polymer as a raw material and having excellent oxidation resistance, in particular excellent oxidation resistance in a high temperature oxidizing atmosphere containing moisture, a crystalline silicon-carbide-based inorganic fiber having a calcined structure of SiC and production processes of these.
Claims8
An oxide-containing silicon-carbide-based inorganic fiber containing 1 to 45% by weight of metal oxide particles.
A production process of an oxide-containing organosilicon polymer, which process comprises adding an alcohol solution of a metal oxide sol to an organosilicon polymer and heat-treating the mixture in an inert gas atmosphere.
A production process of an oxide-containing silicon-carbide-based inorganic fiber, which process comprises adding an alcohol solution of a metal oxide sol to an organosilicon polymer, heat-treating the mixture in an inert gas atmosphere to obtain an oxide-containing organosilicon polymer, melt-spinning the oxide-containing organosilicon polymer to form a spun fiber, infusibilizing the spun fiber to obtain an infusible fiber, and calcining the infusible fiber under heat.
A crystalline silicon-carbide-based inorganic fiber containing 1 to 45% by weight of a metal oxide and having a calcined structure of SiC.
A production process of a crystalline silicon-carbide-based inorganic fiber containing 1 to 45% by weight of a metal oxide and having a calcined structure of SiC, which process comprises adding an alcohol solution of a metal oxide sol to an organosilicon polymer, heat-treating the mixture in an inert gas atmosphere to obtain an oxide-containing organosilicon polymer, spinning the oxide-containing organosilicon polymer to form a spun fiber, infusibilizing the spun fiber to obtain an infusible fiber, calcining the infusible fiber under heat to obtain an oxide-containing silicon-carbide-based inorganic fiber, and heat-treating the oxide-containing silicon-carbide-based inorganic fiber at a temperature of from 1,600 to 2,100° C. in an inert gas.
Dependencies are inferred from the claim text.