| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hard material, as well as a manufacturing method thereof, which can reduce the consumption of W compared with a cemented carbide, and has strength and toughness sufficient to be an alternative of the cemented carbide, and to provide a cutting tool using the hard material. <P>SOLUTION: The hard material is provided with a first hard phase (first hard phase particles 10A), and a binder phase 20 that contains an iron group metal. The first hard phase includes a core 11 consisting of either or both of a carbide of Ti and a carbonitride of Ti, and a shell 12 composed of WC and covering the core 11. In addition, the hard material may contain WC as a second hard phase (second hard phase particles 10B). The first hard phase of WC enables the hard material of high temperature conductivity to be provided. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
