Environment-friendly type nanometer ceramic knife and manufacture method thereof

Abstract

The invention discloses an environmental-protective nanometer ceramic knife and preparing method, which comprises the following steps: adopting tetragonal ZrO2 powder of nanometer grade stable 3mol% Y2O3 and little tetragonal ZrO2 powder of nanometer grade stable 12mol% CeO as raw material; moulding; sintering to produce the product.

Description

technical field [0001] The invention belongs to the technical field of ceramic materials, and in particular relates to an environment-friendly nano-ceramic knife and a manufacturing method thereof. Background technique [0002] At present, the knives used for cutting vegetables, meat, and fruits are mainly made of metal materials such as cast iron and stainless steel. These metal knives (including kitchen knives and fruit knives) often have the following problems in use: (1) easy to rust, especially cast iron knives are easy to rust if they are not dried or have high humidity; It is easy to react with the juice in fruits and vegetables, produce peculiar smell, and cause the surface oxidation and color change of the cut fruit at the same time. In severe cases, metal ions may even dissolve, which affects health and environmental protection; The wear resistance is poor, and it will become blunt after a period of use, requiring frequent sharpening, which is inconvenient. [00...

AI Technical Summary

Problems solved by technology

These metal knives (including kitchen knives and fruit knives) often have the following problems in use: (1) easy to rust, especially cast iron knives are easy to rust if they are not dried or have high humidity; It is easy to react with the juice in fruits and vegetables, produce peculiar smell, and cause the surface oxidation and color change of the cut fruit at the same time. In severe cases, metal ions may even dissolve, which affects health and environmental protection; The wear resistance is poor, it will become dull after a period of use, and it needs to be sharpened frequently, which is inconvenient

[0003] Ceramic knives made of ordinary ceramics can overcome the above problems, but ordinary ceramic materials have low fracture toughness and bending strength, and there is a problem of high brittleness.