ZrO2/Ti (C, N) nano composite ceramic mould material and preparation method thereof

The invention relates to a nano composite ceramic mould material and a preparation method thereof. The nano composite ceramic mould material is prepared by adopting a nano-nano compositing method, using nano 4-6Y-ZrO2 as a base body, adding nano Ti(C, N) as a reinforced phase and using nano alpha-Al2O3 and micron molybdenum, nickel and magnesium oxide as sintering aids for hot pressed sintering. The preparation method comprises the following steps of: firstly respectively dispersing nano 4-6Y-ZrO2 and Ti(C, N) or alpha-Al2O3 powder into a dispersion medium; and ball-milling and drying to obtain powder. The invention is beneficial to improving the mechanical property of the material by carrying out the hot pressed sintering by adopting temperature sectional type hot pressing process, and has simple preparation method and convenient operation; and in addition, the obtained nano composite ceramic mould material has good comprehensive mechanical property and abrasion resistance and can be used for manufacturing an extrusion mould, a drawing mould, a cutting tool, an abrasion and corrosion resistant part, and the like.