Zirconia Introduction

The zirconia ball mill has the advantages of good wear resistance, high strength, and low wear. It is used for the grinding test of rare earth materials to ensure that the ground raw materials will not be mixed with other impurities.

Zirconia material has excellent physical and chemical properties such as high hardness, high strength, high toughness, extremely high wear resistance and chemical corrosion resistance. Zirconia has been used in ceramics, refractory materials, machinery, electronics, optics, optical fiber communications, clocks and watches. Various fields such as jewelry, aerospace, biology, chemistry, etc. have been widely used.

Zirconia fiber is a polycrystalline refractory fiber material. Due to the high melting point, non-oxidation and other excellent characteristics of ZrO2 substance, ZrO2 fiber has a higher service temperature than other refractory fibers such as alumina fiber, mullite fiber, and aluminum silicate fiber. The zirconia fiber is used for a long time in an ultra-high temperature oxidation atmosphere above 1500℃, the maximum use temperature is as high as 2200℃, and it can maintain the complete fiber shape even to 2500℃, and has stable high temperature chemical properties, corrosion resistance, oxidation resistance, thermal shock resistance, Non-volatile and non-polluting, it is currently the world's top refractory fiber material. The acid and alkali corrosion resistance of ZrO2 is much stronger than that of SiO2 and Al2O3. Insoluble in water, soluble in sulfuric acid and hydrofluoric acid; slightly soluble in hydrochloric acid and nitric acid. Can be eutectic with alkali to generate zirconate.

Pure zirconia is a high-grade refractory raw material. Its melting temperature is about 2900℃. It can increase the high temperature viscosity of the glaze and expand the temperature range of viscosity changes. It has good thermal stability. When its content is 2%-3% , Can improve the anti-cracking performance of the glaze. Because of its high chemical inertness, it can improve the chemical stability and acid and alkali resistance of the glaze, and it can also act as an opacifier.

Pure zirconia is a white solid, which will appear gray or light yellow when it contains impurities, and various other colors can be displayed by adding a color developer.