Применение высоких давлений и методов порошковой металлургии для изготовления алмазного инструмента

Abstract

The mechanism of strengthening of diamond grain together with binding agent when manufacturing the stone-crushing diamond instrument by hot compaction under the high pressure has been investigated. Application of high pressures of hot compaction for the compositions of nickelchromium (titanium) diboride results in additional mechanical strengthening of diamond grains together with binding agent at the cost of difference of coefficients of thermal expansion of diamond and binding agent.