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    • 92. 发明授权
    • Inorganic fiber and process for the production thereof
    • 无机纤维及其生产方法
    • US5240888A
    • 1993-08-31
    • US870638
    • 1992-04-20
    • Takemi YamamuraToshihiro IshikawaMasaki Shibuya
    • Takemi YamamuraToshihiro IshikawaMasaki Shibuya
    • C04B35/622C04B35/80
    • C04B35/803C04B35/62272
    • An inorganic fiber having excellent properties as a reinforcement for metals, plastics and rubbers, which has a surface layer portion and an inner layer portion, the surface layer portion having a composition continuously changing from the inner layer portion to the fiber surface, and which is composed of a basic constituent unit of;(1) an amorphous substance composed of silicon, carbon, either titanium or zirconium, and oxygen,(2) an aggregate composed of;crystalline fine particles formed of at least one selected from the group consisting of .beta.-SiC, MC, a solid solution of .beta.-SiC and MC, and MC.sub.1-x, and having a particle diameter of not more than 50 nm,amorphous SiO.sub.2, andMO.sub.2, or(3) a mixture of the above amorphous substance (1) with the above aggregate (2),wherein M is titanium or zirconium and x is greater than 0 and less than 1,the inorganic fiber having an inner layer portion comprising 40 to 60% by weight of silicon, 20 to 40% by weight of carbon, 0.5 to 10% by weight of titanium or zirconium and 10 to 30% by weight of oxygen, and a surface layer portion comprising 0 to 40% by weight of silicon, 50 to 100% by weight of carbon, 0 to 8% by weight of titanium or zirconium and 0 to 25% by weight of oxygen.
    • 作为金属,塑料和橡胶的增强剂的具有优异性能的无机纤维,具有表层部分和内层部分,表面层部分具有从内层部分到纤维表面的连续变化,并且是 由基本组成单位组成; (1)由硅,碳,钛或锆和氧组成的无定形物质,(2)由 由选自β-SiC,MC,β-SiC和MC的固溶体和MC1-x,粒径不超过50nm的至少一种形成的结晶细颗粒,无定形SiO 2, 和MO 2,或(3)上述无定形物质(1)与上述骨料(2)的混合物,其中M为钛或锆,x大于0且小于1,无机纤维具有内层部分 包括40至60重量%的硅,20至40重量%的碳,0.5至10重量%的钛或锆和10至30重量%的氧,以及表面层部分,其包含0至40重量% 硅的重量,50〜100重量%的碳,0〜8重量%的钛或锆,0〜25重量%的氧。