Ceramic for decorative parts, and decorative parts

2010 
Disclosed is a ceramic for decorative parts which has a silver color tone and can impart a sense of luxury, a feeling of aesthetic satisfaction and spiritual comfort, and which has excellent mechanical characteristics such as a high hardness and a high toughness and shows little color difference. Specifically disclosed is a ceramic for decorative parts comprising sintered titanium carbide, which contains 9 to 30 mass% inclusive of zirconia, 5 to 25 mass% inclusive of at least one of cobalt and nickel and 1 to 10 mass% inclusive of chromium, and in which the sum of the contents of zirconia, cobalt, nickel and chromium is less than 50 mass%, characterized in that chromium is dissolved together with cobalt or nickel to form a solid solution. Since zirconia inhibits the oxidation and abrasion of titanium carbide, it is possible to easily provide a sintered body having a high stability and a favorable silver color which can be used, even in sliding parts, over a long period of time without causing marked abrasion flaws.
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