Alumina Ceramic Sheet

The alumina ceramic sheet is made of aluminum oxide ceramics with AL2O3 content higher than 90%, which has the characteristics of high purity, high hardness, high wear resistance and corrosion resistance, and great electrical insulation. Aluminum Oxide Sheets are used in various industries and can be basically divided into wear-resistant ceramic liner sheets, electrical insulation and thermal conductive sheets, and high temperature-resistant ceramic plates.

▼ Wear Application

Alumina sheet is needed in many industrial production processes to prevent wear and reduce equipment maintenance time and improve production efficiency. At the same time, nonporous alumina plates/sheets also reduce the pollution that may occur during the wear process, thereby improving the quality of the product. Especially the fast-flowing mud containing harder particles, in addition to abrasion, is also more serious to equipment corrosion. Alumina wear-resistant ceramics also have a very high cost performance, and the production process is very mature. Alumina ceramic has become one of the best wear-resistant materials at present due to its super wear resistance and corrosion resistance, and has been widely used by industrial enterprises, they are favorable choice especially for cement manufacturers.

▼ Electronic and Electrical Application

With the development of the electronics industry, especially the advent of thick film, thin film circuits and microwave integrated circuits, higher requirements have been placed on packaging industrial ceramics and substrates. Alumina Al2O3 sheet is widely used to install, fix, and protect components in electronic equipment. As an insulating support for current-carrying conductors and substrates for various integrated circuits. Alumina ceramics have low dielectric constant, low dielectric loss, high mechanical strength, high dielectric strength, high electrical insulation, and relatively high thermal conductivity. At the same time, alumina ceramics have a high melting point and high hardness, and only when the service temperature exceeds 1,000°C will the strength decrease. Finally, due to the relatively large increase in the thermal expansion coefficient, the thermal shock stability is reduced. It can be used to manufacture insulating ceramic parts of ultra-high frequency and high-power electric vacuum devices.

▼ High Temperature Application

Aluminum oxide ceramic sheets are sintered in an environment of 1,500-1,650°C, and their temperature resistance performance can also reach corresponding values. At high temperatures, it is not easy to deform and crack. A typical application scenario is the use of setter plates. High-purity (99% Al2O3) alumina ceramic plates are widely used in the sintering of MIM products in vacuum furnaces. With their flat and delicate surface, as well as high purity and less impurities, ceramic setter plates made of alumina can significantly improve the quality of MIM products.

Material Properties

∆ The above data is offered for reference and comparison only, exact data will vary depending on manufacturing method and part configuration.

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