The Properties And Applications of Aluminum Oxide Powder
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Update time : 2021-05-20 10:17:38
Aluminum oxide is a stable oxide of aluminum, and its chemical formula is Al2O3. Aluminum oxide is also called bauxite in mining, ceramics and materials science.
Aluminum Oxide Properties
Alumina (aluminium oxide) is an inorganic substance with the chemical formula Al2O3, which is a high-hardness compound. Alumina is an amphoteric oxide, it can react with alkali to form aluminate, and it can react with acid to form aluminum salt of the acid.
Aluminum oxide is a typical amphoteric oxide (corundum is alpha-shaped and belongs to the hexagonal densest packing, is an inert compound, slightly soluble in acid and alkali, and corrosion resistant). Aluminum oxide is soluble in inorganic acids and alkaline solutions, but almost insoluble in water and Non-polar organic solvent.
Alumina has more than 10 homogeneous crystals, mainly three crystal types, namely γ-Al2O3, β-Al2O3, and α-Al2O3 (corundum). Different structures have different properties, and they are almost completely transformed into α-Al2O3 at high temperatures above 1300°C.
Aluminum Oxide Applications
At present, more than 90% of aluminum oxide is used as the raw material for electrolytic aluminum smelting, but many sectors such as electronics, petroleum, chemicals, refractories, ceramics, plastics, textiles, papermaking, and pharmaceuticals also require oxidation with various special properties.
At present, there are more than 300 kinds of non-metallurgical aluminum oxide, each with excellent physical and chemical properties, wide range of uses, and the price is much higher than that for metallurgical aluminum oxide.
For example, high-purity ultra-fine aluminum oxide, due to its high melting point, high hardness, high electrical resistance, good mechanical properties, wear resistance, corrosion resistance, green heat resistance and other excellent characteristics, is widely used for light-transmitting oxidation & sintered bodies, phosphors Carriers, single crystal materials, advanced porcelain, artificial bones, semiconductors, integrated circuit substrates, audio tape fillers, catalysts and their carriers, abrasive materials, laser materials, cutting tools, etc.
The 99.995% high-purity aluminum oxide series is mainly used for LED artificial sapphire crystals, advanced ceramics, PDP phosphors and some high-performance materials. As the raw material of sapphire crystal, it can provide powder, granule, block or column type according to different requirements.
99.99% high-purity aluminum oxide series are mainly used in high-pressure sodium lamps, new luminescent materials, special ceramics, advanced coatings, three primary colors, catalysts and some high-performance materials.
Luoyang Trunnano Tech Co., Ltd (TRUNNANO) is a professional aluminum oxide powder with over 12 years experience in chemical products research and development. We accept payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.
If you are looking for high quality aluminum oxide powder, please feel free to contact us and send an inquiry.
