This article mainly talk about zirconia ceramic is made of what material? What are its features and applications?
Zirconium dioxide, chemical formula: ZrO2, is the main oxide of zirconium, usually white odorless, tasteless crystals, insoluble in water, hydrochloric acid and dilute sulfuric acid.It usually contains a small amount of hafnium dioxide. Its chemical properties are not active, and it has the properties of high melting point, high resistivity, high refractive index and low thermal expansion coefficient, which makes it an important high-temperature resistant material, ceramic insulation material and ceramic sunshade, and is also the main raw material for artificial drilling. The band gap is about 5-7eV.
Zirconia (ZrO) natural zirconia mineral raw materials, mainly incline zircon and zircon. Zirconite igneous rock deep mineral, color is light yellow, brown yellow, yellow green, specific gravity 4.6-4.7, hardness 7.5, with strong metallic luster, can be used as raw materials for ceramic glaze.
1, zirconia ceramic hardness close to natural diamond, lighter than metal, with never wear, do not change color and other gem characteristics;
2, high anti-wear, anti-oxidation, never rust, never change color, will never cause skin allergies;
3, insulation, no metal, electroplating pollution, is the ideal environmental protection materials in the watch industry;
4, density color ceramic case, bezel, dial, buckle, case and other products, texture, visual extraordinary;
5, very hard, beautiful and durable, does not damage the skin, revealing a unique luster, the product elegant and luxurious, bright bright, outstanding and not a group.
Zirconia ceramics is a new type of high-tech ceramics, which is much better than traditional alumina ceramics in terms of texture, process, color, etc. Zirconia ceramics have phase transition toughening and micro-crack toughening, so it has high strength and toughness, and its fracture toughness is high in all ceramics.