| US 7,578,867 B2 | ||
| Ceramic sintered product and method for production thereof, and decorative member using the ceramic sintered product | ||
| Kenichi Hamamura, Kirishima (Japan); and Saburou Nagano, Kirishima (Japan) | ||
| Assigned to Kyocera Corporation, Kyoto (Japan) | ||
| Filed on Sep. 28, 2006, as Appl. No. 11/536,494. | ||
| Application 11/536494 is a continuation of application No. PCT/JP2005/005717, filed on Mar. 28, 2005. | ||
| Claims priority of application No. 2004-093941 (JP), filed on Mar. 29, 2004; and application No. 2004-221392 (JP), filed on Jul. 29, 2004. | ||
| Prior Publication US 2007/0044588 A1, Mar. 01, 2007 | ||
| Int. Cl. C22C 29/16 (2006.01); C22C 29/04 (2006.01) | ||
| U.S. Cl. 75—235 [75/242; 75/244; 419/13; 419/14; 419/19] | 16 Claims |
| 1. A ceramic sintered product comprising:
a first hard phase containing a nitride of titanium;
a second hard phase containing at least one of alumina and zirconia; and
a binding phase containing nickel,
wherein the first phase contains carbon in solid phase and defined by the following formula TiCxN(1-x) (0.03≤x≤0.08),
wherein the ceramic sintered product comprises 11 to 25% by weight of the second hard phase and 4 to 10% by weight of the
binding phase, and the balance comprising the first hard phase.
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