PURPOSE: To obtain coiled fibers comprising surface or the whole part converted into a carbide of element of group IV, having excellent oxidation resistance, corrosion resistance, strength, etc., by subjecting coiled carbon fibers of specific shape and a volatile compound of element of group IV to gas reaction diffusion treatment in a reducing atmosphere.
CONSTITUTION: Coiled carbon fibers having 0.05-5μm fiber diameter, 2-10 times as long outer diameter of coil as diameter of fibers and 5-50 windings/outer diameter of coil based on 10μm and a gaseous volatile compound (e.g. TiCl4 or SiCl4) of element of group IV are subjected to gas reaction diffusion treatment (preferably 1,000-1,450°C for 5 minutes-5 hours) in a reducing atmosphere and the surface or the whole parts are changed to a carbide of element (e.g. Ti or Si) of group IV to give coiled fibers suitable for micro mechanical element, cushioning material, etc.
KAWAGUCHI MASAYUKI
NOZAKI KOJI
KIDA YASUSHI
| JPS61225319A | 1986-10-07 | |||
| JPS546891A | 1979-01-19 | |||
| JPS61239019A | 1986-10-24 | |||
| JPS5029528A | 1975-03-25 |
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