| 摘要 |
An object of the present invention is to provide ceramics for decorative component which has golden color tone and provides high-grade impression, aesthetic satisfaction and mind soothing effect, and has high mechanical properties such as hardness and toughness with less color difference. The present invention relates to a ceramics for decorative component, composed of titanium nitride-based sintered material which contains titanium nitride as a main component, wherein the titanium nitride-based sintered material contains nickel, niobium, chromium and carbon, and wherein a content of carbon is not less than 0.5% by mass nor more than 0.9% by mass. According to the ceramics for decorative component of the present invention, it is possible to have better mechanical properties such as hardness and toughness since carbon diffuses and forms solid solution with titanium nitride that accelerates the sintering process. In addition, since the black color of carbon is expected to suppress the surface color from becoming uneven through the effect of making the color a little achromatic. As a result, color difference (&Dgr;E*ab) can be decreased so that difference in color tones is hardly felt among the decorative components.
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