Zirconia ceramic structural parts with zirconia (ZrO2) as the main material, high temperature resistance, corrosion resistance, wear resistance, is an inorganic non-metallic materials with excellent electrical conductivity, but also precision ceramics in the use of a large number of ceramic structural parts. What are the places where zirconia ceramics are used?
A, cell phones and other 3C electronic field
Zirconia ceramics have no signal shielding, wear resistance and folding resistance, while the appearance of warm as jade, feel good, widely used in cell phones and other 3C electronic fields. It is mainly used as cell phone backplane and other cell phone structural parts.
Second, smart wear field
Compared with metal, zirconia ceramics have better wear resistance, and the surface is smooth, good texture and no oxidation. The famous Swiss "Rado" brand, Apple, Chanel and other famous brands have launched high-end ceramic watches.
Third, the field of optical communications
At present, the fiber optic connector connectors are widely used ceramic inserts and sleeves. High strength and high toughness ceramic preparation of ceramic insert, not only can achieve high precision requirements, and long service life, insertion loss and return loss is very low.
IV. Biomedical field
Zirconia ceramic materials are most commonly used in the biomedical field as dental prosthetic materials and surgical tools due to their high strength, high toughness, corrosion resistance, wear resistance and good biocompatibility.
V. Automotive field
Zirconia ceramics have a small thermal conductivity and a large coefficient of thermal expansion, so it has a good thermal insulation of the engine combustion chamber parts, while the thermal expansion is closer to that of metal materials. Can be used as cylinder head base plate, cylinder liner, piston top, valve seat ring, etc.. However, due to the harsh working conditions of the engine, ceramic parts in the high temperature strength changes, so there is still a distance from commercial applications.
Six, jewelry field
High-precision ceramics and precious metal alloy powder mixture firing, and after several precise and strict process and multiple machine polishing and polishing and finally into the jewelry design. This ceramic is not only light and wear-resistant, but also has the characteristics of anti-sensitive, comfortable to wear. It is one of the most fashionable jewelry materials today, and is favored by major jewelry brands.
Seven, the field of daily life
Ceramics is the heritage of thousands of years of Chinese culture, in addition to the above applications, ceramics are also ubiquitous in our daily lives. Ceramic has the characteristics of high temperature resistance, corrosion resistance, oxidation resistance, high strength, wear resistance, and natural antibacterial, etc. It can be used as porcelain bowl and spoon, vase, ceramic knife, etc.
Eight, other fields
Zirconia ceramics have good mechanical properties and are wear and corrosion resistant, and can be used as ceramic bearings and ceramic knives. At the same time, zirconia ceramics are weakly acidic oxides, which can resist erosion by the slag under the calculation or neutral (but will be eroded by alkaline slag), and can be made into refractory crucibles for metallurgy. The high strength, high toughness and corrosion resistance also make zirconia ceramics have some applications in petroleum, chemical, mechanical and aviation fields.