Aluminum Oxide Powder – 630

Aluminum Oxide Powder, Granules, Pellets, and Sputtering Targets

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Specifications

Formula AL2O3101.96
Purity 99.99 %
Particle Size 10 mm x 10 mm
CAS 1344-28-1
Melting Point 2072 °C
Boiling Point 2980 °C
Density 3.965 G/Cm3
Mohs Hardness @ 20ºC 9
Electric Resistivity 1×1022 Microhm-Cm
Crystal Structure Hexagonal
Applications Abrasives
Lapping
Polishing
Form Pellets- Vacuum Melted

Cost Per Kilogram

1-2 KG
3-10 KG
11-25 KG
26+ KG
Background Aluminium oxide is an amphoteric oxide of aluminium with the chemical formula Al2O3. It is also commonly referred to as alumina, corundum, sapphire, ruby or aloxite in the mining, ceramic and materials science communities. It is produced by the Bayer process from bauxite. Its most significant use is in the production of aluminium metal, although it is also used as an abrasive due to its hardness and as a refractory material due to its high melting point.
Chemistry The most common form of crystalline alumina, a-aluminium oxide, is known as corundum. When trace elements make it appear red it is known as ruby, but all other colorations fall under the designation sapphire. Corundum has a trigonal Bravais lattice with a space group of R-3c (number 167 in the International Tables). The primitive cell contains two formula units of aluminium oxide. The oxygen ions nearly form a hexagonal close-packed structure with aluminium ions filling two-thirds of the octahedral interstices.