What is zirconia, exactly?
Zirconium dioxide, which has the chemical formula ZrO2, the main oxide of zirconium is white, tasteless and odorless crystals. It is insoluble with water, hydrochloric Acid, and dilute-sulfuric acid. It is chemically inactive. It has the properties high melting point and high resistivity.
Zirconia’s main application areas
Raw materials and compounds of metal zirconium
It is used for the production of metal zirconium or zirconium compound, as well as making refractory and crucible bricks and crucibles. Most commonly used to make piezoelectric ceramics, household ceramics and refractory materials, precious metal smelting Zirconium zirconium bricks, Zirconium tubes, and crucibles. This is used for the production of steel, non-ferrous and optical metals, zirconium dioxide fibres, and optical glass. It’s also used in ceramic pigments and electrostatic coatings. It can also be used in epoxy resin to prevent the corrosion of heat resistant salt water.
Zirconia fiber can be described as a polycrystalline refractory fibre material. ZrO2 has a higher service temp than other refractory fibres like mullite fiber and aluminum silicate fiber due to its high melting point, nonoxidation, and other excellent properties at high temperatures.
Zirconia can be used in an ultra-high-temperature oxidizing environment above 1500°C for up to two years. The maximum service temperature is at 2200°C. ZrO2’s resistance to acid and alkali corrosion is superior to that of SiO2O3 and Al2O3. Insoluble in water; soluble in sulfuric and hydrofluoric acids; slightly soluble hydrochloric and nitric acids. It can be fused in alkali to create zirconate.
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