| 摘要 |
<p>An inorganic fiber-reinforced metallic composite material comprising a matrix of a metal or alloy and inorganic fibers as a reinforcing material, characterized in that
<UnorderedLists id="ula01" listStyle="none"><ListItem>(a) the inorganic fibers are inorganic fibers containing silicon, either titanium or zirconium, carbon and oxygen and composed of
<UnorderedLists id="ula02" listStyle="none"><ListItem>(i) an amorphous material consisting substantially of Si, M, C and 0, or</ListItem><ListItem>(ii) an aggregate consisting substantially of ultrafine crystalline particles with a particle diameter of not more than 50 nm of β-SiC, MC, a solid solution of β-SiC and MC and MC<Sub>1-x</Sub>, and amorphous Si0<Sub>2</Sub> and MOz, wherein M represents titanium or zirconium and x is a number represented by 0<x< 1, or</ListItem><ListItem>(iii) a mixture of the amorphous material (i) and the aggregate (ii),</ListItem></UnorderedLists></ListItem><ListItem>(b) the inorganic fibers have an initial degradation speed of not more than 0.3 kg/mm<Sup>2</Sup>.sec<Sup>-1</Sup> and a tenacity reduction ratio of not more than 30% during the production of the composite material,</ListItem><ListItem>(c) the composite material has a short beam shear strength, measured in the monoaxially reinforced state, of at least 8 kg<Sub>/mm</Sub><Sup>2</Sup>,</ListItem><ListItem>(d) the composite material has a transverse tensile strength, measured in the monoaxially reinforced state, of at least 6 kg/mm<Sup>2</Sup>, and</ListItem><ListItem>(e) the composite material has a fatigue limit/tensile strength ratio of at least 0.4.</ListItem></UnorderedLists></p> |
