| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sintered compact having higher hardness without reducing toughness. <P>SOLUTION: In the sintered compact 1 having a skeleton structure 4 where the outer periphery of a hard phase 2 whose main ingredient is TiCN is enclosed by a matrix 3 whose main ingredient is WC, the average particle diameter of the hard phase 2 is 0.3-5 μm and the ratio (Sp/Sb) of the area Sp of the hard phase 2 to the area Sb of the matrix 3 is 0.5-3 in the cross-sectional observation of the skeleton structure 4 of the sintered compact 1. <P>COPYRIGHT: (C)2011,JPO&INPIT |
