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In what areas can alumina be used?
Time:
2023-05-31
Alumina ceramics is a ceramic material with alumina (AI203) as the main body. With the rapid development of my country's architectural ceramics industry, alumina ceramics are widely used in various industries such as combustion power plants, steel smelting, mechanical wear-resistant parts, coal mines, oil mining, chemical industry, cement production, ports and terminals, and electronics. It is a new ceramic material with a wide range of uses and a very large output and sales volume in oxide ceramics. Alumina ceramic materials have a series of good properties such as high mechanical strength, high insulation resistance, high hardness, wear resistance, corrosion resistance and high temperature resistance. They are very important materials in the automotive industry. The application in automobiles is also more and more extensive, so what is the application of alumina ceramic materials in automobiles?
Good thermal properties
At present, about 78 points of combustion energy loss in gasoline engines are in heat and heat transfer, and the thermal efficiency of diesel engines is 33 points. Although it is better than gasoline engines, there are still more than 60 points of heat energy loss. Therefore, in order to reduce this loss, gasoline The combustion chamber is insulated by alumina ceramic materials with good thermal insulation performance, and the exhaust gas turbocharger and power turbine recover the exhaust gas energy.
Biological inertia
The requirements of automotive sensors can be used in the harsh environment of automotive gasoline for a long time, and they should be small and lightweight, with good reusability and wide output range. The biological inertness of alumina ceramics makes them resistant to the effects of chemical solvents and salt solutions.
Electrical characteristics of alumina
The car damping device is an intelligent damper developed by comprehensively utilizing the positive piezoelectric effect, inverse piezoelectric effect and electrostrictive effect of alumina ceramics. Due to the high sensitivity of alumina ceramics, the shock absorber made of alumina ceramics has the ability to identify the road surface and Self-adjustment function can minimize car vibration caused by uneven road surfaces.
Chemical stability
The automobile exhaust catalyst carrier is honeycomb cordierite ceramic, and the surface is coated with alumina inorganic polymer material and alumina coating made of doped rare earth elements. The coating made of alumina material has good performance in heat resistance, corrosion resistance and thermal stability.
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Zibo Yinhan Special Alumina Co., Ltd.
E-mail：yinhan.alumina@gmail.com
Phone：+86-13969330618
E-mail：yinhan.alumina@gmail.com
Tel：+86-533-2985768
Fax：+86-533-5355787
Add: Fujia Town, Economic Development Zone, Zibo City, Shandong Province
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