The Introduction of Zirconium Silicate Powder
Zirconium Silicate Powder Characteristics：
Zirconium Silicate Powder has a high refractive index of 1.93-2.01 and stable chemical properties，It is a high-quality and inexpensive opacifier. It is widely used in the production of various building ceramics, sanitary ceramics, ceramics for daily use, first-class crafts and ceramics, etc. In the processing and production of ceramic glaze,it has a wide range of applications and large amount of application.The reason why zirconium silicate powder is widely used in ceramic production is because of its good chemical stability, so it is not affected by the ceramic firing atmosphere, and can significantly improve the ceramic glaze bonding performance and increase the ceramic glaze hardness. Zirconium silicate powder has also been further used in the production of color picture tubes in the television industry, emulsified glass in the glass industry, and enamel glazes. Zirconium silicate powder has a high melting point: 2500 degrees Celsius, Therefore, it is also widely used in refractory materials, zirconium ramming materials for glass furnaces, castables, and spray coatings.
When high-performance zirconium silicate powder has the two conditions of whitening and stabilization, the properties of zirconium silicate powder, particle morphology, particle size range, dispersibility in the medium, and opacification segregation after tile or glaze application are better than those Conventional zirconium silicate powder.
The whitening effect of zirconium silicate powderis due to the formation of oblique zircon after the ceramic is fired, which scatters incident light waves. This kind of scattering is generally called large particle scattering or Mie Scattering. Combining theoretical calculations and actual powder production, controlling the d50 value of high-performance zirconium silicate powder below 1.4um and d90 below 4.0um (based on the value measured by the laser particle analyzer made in Japan) will produce the best Milky whitening effect. In the whitening effect of zirconium silicate powder, the concentrated particle size range is very important, and it is required to achieve as narrow a particle distribution as possible during the grinding process of zirconium silicate powder.
Zirconium Silicate Powder Use Characteristics：
From the results of the use of nano-scale zirconium silicate powder in the production of ceramics and functional materials, it has the following characteristic：
- Zirconium silicate powder is used as a ceramic glaze additive, in a certain particle size range, the whiteness, strength, abrasion resistance, hydrolysis resistance, and corrosion resistance are all improved with the decrease of the particle size, the self-cleaning ability is enhanced, and the dosage is reduced.
Due to the strong hydrolysis resistance of nano-grade zirconium silicate powder, it can be used as a carrier of nano-functional powder in water environment.For example, the nano energy stone prepared by Hexiang Company uses nano-scale zirconium silicate powder as a carrier.
- Because nano-grade zirconium silicate powder has strong oxidation resistance, it can be used as a surface coating agent for functional powders. The red glaze of China Red Ceramics is made of nano-grade zirconium silicate as the coating agent, the color is bright red and does not fade.
- Due to the high strength and wear resistance of nano-scale zirconium silicate, therefore, nano-scale zirconium silicate powder is a high-quality grinding media and engineering ceramic raw materials.