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    • 1. 发明授权
    • Inorganic fiber-reinforced ceramic composite material
    • 无机纤维增强陶瓷复合材料
    • US4618529A
    • 1986-10-21
    • US725128
    • 1985-04-19
    • Takemi YamamuraMasahiro TokuseYoshiharu Waku
    • Takemi YamamuraMasahiro TokuseYoshiharu Waku
    • C03C14/00C04B35/80D03D3/00
    • C04B35/80C03C14/002C03C2214/02C03C2214/20Y10T428/2918Y10T428/30Y10T442/3195Y10T442/3309Y10T442/67
    • An inorganic fiber-reinforced ceramic composite material comprising a matrix of a ceramic and inorganic fibers as a reinforcing material, characterized in that(a) the inorganic fibers are specified inorganic fibers containing silicon, either titanium or zirconium, carbon and oxygen,(b) the ceramic is at least one material selected from the group consisting of carbides, nitrides, oxides, glass ceramics, graphite and specified inorganic materials containing silicon, either titanium or zirconium, carbon and oxygen,(c) the inorganic fibers have an initial reaction degradation speed of not more than 0.35 kg/mm.sup.2.sec.sup.-1 and a tenacity reduction ratio of not more than 40% during the production of the composite material,(d) the composite material has a critical stress intensity factor about 2 to 7 times as high as that of said matrix alone, and(e) the composite material has a bending strength reduction ratio, measured by a thermal shock fracture resistance measuring method, of not more than about 10% after it is heat-treated in air at 800.degree. to 1300.degree. C., immediately then dipped in water at room temperature, and then dried.
    • 1.一种无机纤维增强陶瓷复合材料,其特征在于,包含陶瓷基体和无机纤维​​作为增强材料,其特征在于,(a)所述无机纤维是指含有钛或锆,碳和氧的硅的规定的无机纤维,(b) 陶瓷是选自碳化物,氮化物,氧化物,玻璃陶瓷,石墨和含硅,钛或锆,碳和氧的指定无机材料中的至少一种材料,(c)无机纤维具有初始反应降解 速度不超过0.35kg / mm2.sec-1,在复合材料生产过程中强度降低率不超过40%,(d)复合材料具有约2至7倍的临界应力强度因子 (e)复合材料具有通过耐热冲击断裂电阻测定法测定的弯曲强度降低率不大于 在空气中在800〜1300℃下热处理后约10%,立即在室温下浸渍在水中,然后干燥。
    • 7. 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。