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Understand the high temperature and high purity of industrial ceramic alumina

Understand the high temperature and high purity of industrial ceramic alumina

Alumina ceramics is a ceramic material with alumina (Al2O3) as the main body, which is mostly used in thick-film integrated circuits. About the basic knowledge of alumina, let Pintejin Ceramics Factory introduce to you. Alumina ceramics have good conductivity, mechanical strength and high temperature resistance. It should be noted that ultrasonic cleaning is required. alumina ceramic high temperature resistant sheet Alumina ceramic high temperature resistant sheet – high alumina content, relatively dense structure and special properties, so it is called special ceramics. Alumina ceramic high temperature resistant sheet is a close-packed hexagonal structure composed of oxygen ions, and aluminum ions are filled in two-thirds of the octahedral gap, which is the same stable α-Al2O3 structure as natural corundum, because alumina ceramics have High melting point, high hardness, widely used, with excellent wear resistance.

Understand the high temperature and high purity of industrial ceramic alumina

The hardness of the ceramic patch is ≥HRA85, second only to the hardness of diamond, and the surface is smooth and the friction coefficient is small, and the wear resistance is very ideal, especially in high-temperature oxidizing media or corrosive media, the material of alumina ceramic high-temperature resistant sheet is better than other The performance of metal materials is much better. 99 alumina ceramic crucible High-purity alumina ceramics are ceramic materials with Al2O3 content of more than 99.9%. Because of their sintering temperature as high as 1650-1990℃ and transmission wavelength of 1-6μm, they are generally made of molten glass to replace Platinum crucible. Using its light transmittance and alkali metal corrosion resistance, it can be used as a sodium lamp tube; it can be used as an integrated circuit substrate and a high-frequency insulating material in the electronics industry. Alumina ceramics have several characteristics:

  • 1. High hardness, measured by the Shanghai Institute of Silicate, Chinese Academy of Sciences, its Rockwell hardness is HRA80-90, the hardness is second only to diamond, far exceeding the wear resistance of wear-resistant steel and stainless steel .

    2. Excellent wear resistance, measured by the Institute of Powder Metallurgy of Central South University, its wear resistance is 266 times that of manganese steel and 171.5 times that of high-chromium cast iron. According to our customer follow-up survey for more than ten years, under the same working conditions, the service life of the equipment can be extended by at least ten times.

    3. Light weight, its density is 3.5g/cm3, which is only half of steel, which can greatly reduce equipment load.

    Alumina ceramics are a versatile ceramic. Because of its superior performance, the application in modern society has become more and more extensive, meeting the needs of daily use and special performance.
 

 



Pintejin machining ceramic service include : Alumina Ceramic PartsZirconia CeramicSilicon Carbide CeramicCNC Machined Aluminum Nitride CeramicMachinable Ceramic PartsGlass Ceramic,Macor Ceramic,Powder Metallurgy Dies,Ceramic Injection Molding,Ceramic Dry Pressing,Ceramic Extrusion Dies


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