Research on the High Grade Diamond Synthesis by Φ23 Synthesizing Cavity with Ni-Mn Powder Catalyst

Preparation method and main characters of Ni-Mn powder catalyst have been studied,and several patches synthesis experiments have been taken by the optimum seeking process.The experimental results show that the synthesis diamond reached 10 cts and its particle size distrubuts between 60~80 mesh by two steps increasing optimum synthesizing process.