Alumina ceramics is a kind of ceramic materials with alumina as the main body. Alumina ceramics have better conductivity, mechanical property, wear resistance and high temperature resistance, also known as special ceramics. Al2O3 ceramic material is a dense hexagonal structure composed of oxygen ions, and aluminum ions filled in two thirds of the octahedral gap, which is the same as natural corundum stable α-Al2O3 structure, so the ceramic has a high melting point, high hardness, has excellent wear resistance. Alumina ceramic hardness ≥HRA85, hardness is second only to diamond, its wear resistance is very excellent.
Generally speaking, alumina ceramic aluminum is divided into common type and high purity type. Common type according to Al2O3 content is divided into 92% alumina ceramic, 95% alumina ceramic, 96% alumina ceramic. High purity type is 99% alumina ceramic and above the ceramic, its sintering temperature as high as 1650-1990℃. 99.7%-99.9% high purity alumina ceramics can be used in the electronics industry as integrated circuit board and high frequency insulation materials, semiconductor industry in the grinding silicon wafers, etc., is the sapphire and semiconductor silicon wafer chemical mechanical polishing key supporting parts and consumables.
The higher the alumina content of wear-resisting ceramics, the more stable the performance, that is, the higher the aluminum content, the better the wear-resisting performance. Alumina ceramics as an advanced ceramic material, with the rapid development of new industrial wear-resistant materials, will be more and more widely used in modern society.
Chemshun Ceramics provides various high purity alumina ceramics, such as: 92%Al2O3 & 95%Al2O3 standard wear resistant alumina ceramic liner, ceramic lining pieces and mat, hexagon/square ceramic tile, ceramic pipe/tube/elbow, ceramic cylinder, ceramic block/cube, ceramic brick, 99.7% alumina baseboard and alumina wafer polishing plate, 99% alumina bulletproof ceramic,etc.
Post time: Sep-17-2022