| 摘要 |
PURPOSE: To obtain a titanium carbide nitride having a high purity (contains less free carbon and residual oxygen) and <=0.35μm particle diameter, good in sintering properties on using it as a raw material and expected to exhibit the characteristics of a cermet excellent in cutting properties, and to provide a method for producing its same. CONSTITUTION: This method for producing a titanium carbide nitride by mixing the powder of a titanium oxide with the powder of a carbon and heat-treating, comprises using the powder of the titanium oxide and the powder of the carbon having <=1μm mean particle diameter as starting raw materials, granulating the mixed powder to form into granulated pellets, then drying the pellets to be powdered and heat-treating the granulated raw material powder using a rotary furnace under nitrogen gas flow at 1500-1800 deg.C to obtain the uniform and fine powder of the titanium carbide nitride having less scattering and a high purity. This titanium carbide nitride has the composition of <=1.0wt.% oxygen content, <=0.3wt.% free carbon content, 1.0-12.0wt.% carbon content, 7.0-20.0wt.% nitrogen content and the balance substantially Ti, and has <=0.35μm particle diameter.
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