Synthesis of fine – grained diamond with metal carbide powder catalyst,the chemical composition is (weight):C:１～２０％，Mn:０～２０％Co: ０～４％,the balance is nickel and trace impurities,The powder catalyst using vacuum casting – turning – crushing process milling,the production process is simple,high yield of finished products,up to 95%The use of the catalyst synthesis of the diamond yield of high,up to 8 carats or more,isometric about 90%,complete single crystal more than 50%,diamond grain size,color yellow,high transparency,is the production of polycrystalline,composite films,and other metal bonding agent diamond products of the ideal cabide raw materials.

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