Patent ID: 11965227
Assignee: CHONGYI ZHANGYUAN TUNGSTEN CO., LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. A preparation method of the metal ceramic according to claim 1, comprising the steps of:
S1. powder preparation mixing a hard phase powder, a binder phase powder, a molding agent and a solvent, ball milling, and spray granulation to obtain a mixture;
wherein the hard phase powder is selected from the powders of at least one of carbides, nitrides, or nitrocarbides and the solid solutions thereof comprising at least one of Ti, W, Mo, Ta, Nb, V, Cr, Zr;
wherein the binder phase powder is selected from at least one of Co and Ni powders;
S2. compression molding compressing the mixture powder to obtain a green compact;
S3. sintering treatment putting the green compact under a vacuum atmosphere, heating up to the molding agent removal temperature, and removing the molding agent; sintering the green compact from which the molding agent has been removed; performing sintering under high pressure conditions to form the metal ceramic.