SINTERED BODY AND CUTTING TOOL

摘要

Provided is a sintered body that contains cubic boron nitride particles as hard phase particles, that has a thermal conductivity of less than 20 W·m-1·K-1, and that is for use in the cutting of a nickel-based heat-resistant alloy formed from coarse crystal grains having a grain size number of 5 or less as defined by the ASTM standard E112-13. Also provided is a cutting tool that comprises the sintered body. The present invention thus provides a sintered body having high wear resistance and high defect resistance and a cutting tool comprising this sintered body.