In the ceramic industry, calcined zinc oxide is mainly used in the following aspects
1. As flux:
when zinc calcined oxide is used as flux in low temperature frit glaze, the general dosage is between 5% and 10%, and the general dosage is about 5% in low temperature raw glaze.
2. As turbidity agent:
calcined zinc oxide is added to glaze containing high chlorine trioxide, which can improve the turbidity of glaze surface.Because zinc oxide can form zinc spinel crystal with Al2O3. In a zinc-containing opacified glaze, chlorine trioxide can increase the whiteness and opacities of the glaze, while silicon oxide can increase the gloss of the glaze.
3. Used as crystallizer:
in the crystal glaze of art glaze, zinc oxide is an indispensable crystallizer. When the glaze is rapidly cooled, it forms a large crystal pattern, which is very beautiful. In the crystal glaze, the amount of zinc oxide is as high as 20-30%.
4. Cobalt sky blue glaze:
calcined zinc oxide is a very important flux in the cobalt sky blue glaze, which can make the cobalt oxide form a beautiful sky blue in the glaze.