| 摘要 |
PURPOSE:To obtain the titled sintered form outstanding in hardness, strength and corrosion resistance, giving beautiful color tone, by pressure forming of a mixture of a titanium carbo-nitride of desired carbon/nitrogen ratio and specific metal oxide followed by sintering the resultant pressed powder. CONSTITUTION:A mixture of (A) 75-99.5wt.% of (i) a blend prepared by mixing at least one kind of compound selected from titanium carbide, titanium nitride and titanium carbo-nitride of arbitrary carbon/nitrogen ratio so as to produce a titanium carbo-nitride of desired carbon/nitrogen ratio or (ii) the titanium carbo-nitride of said desired carbon/nitrogen ratio and (B) 0.5-25wt.% of (respective) oxide(s) of at least one kind of element selected from Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Y and lanthanide series rare earth elements is prepared. Thence, this mixture is subjected to pressure forming followed by sintering the resultant pressed powder in a non-oxidative atmosphere at 1,600-2,100 deg.C, thus obtaining the objective sintered form. |
