Zirconia is a crystalline dioxide of zirconium. Its mechanical properties are very similar to those of metals and its color is similar to tooth color. Yttrium-stabilized zirconia, also known as tetragonal zirconia polycrystal (TZP), is presently the most studied combination. ZrO2 stabilized with Y2O3 has better mechanical properties than other combinations; although its sintering is much more difficult, this is the principal kind of zirconia considered for current medical use.

1. In terms of structural ceramics, zirconia ceramics are widely used in the field of structural ceramics due to their high toughness, high flexural strength, high wear resistance, excellent heat insulation performance, and thermal expansion coefficient close to steel.

Mainly include: Y-TZP grinding balls, dispersing and grinding media, nozzles, ball valve seats, zirconia molds, micro fan shafts, fiber optic ferrules, fiber optic sleeves, drawing dies and cutting tools, wear-resistant knives, clothing buttons, Watch cases and straps, bracelets and pendants, ball bearings, golf light bats and other room temperature wear-resistant parts, etc.

2. In terms of functional ceramics, its excellent high temperature resistance can be used as induction heating tubes, refractory materials, and heating elements. Zirconia ceramics have sensitive electrical parameters.

It is mainly used in the fields of oxygen sensor, solid oxide fuel cell (Solid Oxide Fuel Cell, SOFC) and high temperature heating element.

3. ZrO2 has a high refractive index (N-21^22), adding certain coloring elements (V2O5. MoO3. Fe2O3, etc.) .

Like natural gemstones, it shines brightly and colorfully, and can be made into various decorations. In addition, zirconia is being widely used in thermal barrier coatings, catalyst supports, medical treatment, refractory materials, textiles and other fields.