Zirconium oxide-based nano ceramic tool and die material added with titanium boride and preparation method thereof

The invention relates to a nano ceramic tool and die material and a preparation method thereof. The ceramic tool and die material is sintered from yttrium stabilized nano ZrO2 serving as matrix, added micro TiB2 and micro alpha-Al2O3 serving as enhancing phases and micro molybdenum, nickel and magnesium oxide serving as sintering aids. The preparation method comprises the following steps: dispersing the nano ZrO2, micro TiB2 and micro alpha-Al2O3 powder respectively, ball-mixing and drying the power to obtain a powdery material, and sintering the powdery material by adopting a hot-pressing method. The method is favorable for improving the mechanical property of the material, and has the advantages of simple preparation, convenient operation and the like. The obtained nano ceramic tool and die material has good comprehensive mechanical property, friction reduction and abrasion resistance, and can be used for manufacturing cutting tools, dies and other abrasion and corrosion resistant parts.