DIAMOND-CONTAINING HARD MEMBER AND ITS PRODUCTION

摘要

PROBLEM TO BE SOLVED: To improve the wear resistance of a diamond-containing hard member. SOLUTION: This diamond-containing hard member is prepared by energizing and pressing to sinter the powder of diamond and a composition composed of at least one of a sintered hard alloy and a thermet as the balance and the particle diameter of the diamond is controlled to 1-1,000μm. The content of the diamond particle is 5-45 vol.%. The N2 content in the diamond particle is controlled to <=400 ppm.