| 摘要 |
PROBLEM TO BE SOLVED: To provide a sintered body for tools suitable to be used as a cutting tool, a drilling tool, etc., and having high hardness, high toughness, and excellent heat resistance and to provide a method to manufacture the sintered body. SOLUTION: In this method, a hydrocarbon and diamond particles are mixed with a powder mixture of P2 O5 and oxides of rare earth metals or alkaline earth metals. Successively, the resultant mixture is set in a very high pressure apparatus and explosion is carried out at very high pressure and high temperature conditions where diamond is stable to carry out simultaneous reactions of the oxides among one another and between the oxides and the hydrocarbon and carry out sintering. |
