| 摘要 |
A reinforcing inorganic fiber composed of an internal layer and a surface layer, wherein said internal layer is composed of an inorganic material containing silicon, either titanium or zirconium, carbon and oxygen which is (i) an amorphous material consisting substantially of Si, M, C and O, or (ii) an aggregate consisting substantially of ultrafine crystalline particles with a particle diameter of not more than 500 ANGSTROM of beta -SiC, MC, a solid solution of beta -SiC and MC and MC1-x, wherein M represents titanium or zirconium, and x is a number represented by 0<x<1, or (iii) a mixture of the amorphous material (i) and the aggregate (ii), and said surface layer is composed of an inorganic material consisting of silicon, either titanium or zirconium, and oxygen and optionally not more than 5% by weight of carbon which is (iv) an amorphous material consisting substantially of Si, M and O, (v) an aggregate composed of crystalline SiO2 and MO2, or (vi) a mixture of the amorphous material (iv) and the aggregate (v).
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