What is Aluminum oxide and its application

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What is Aluminium oxide? Aluminum oxide Al2O3 is an inorganic compound. It has high hardness and a melting point at 2054 degC. The boiling point is 2980 degC. It’s an ionic crystal which can be ionized at elevated temperatures. This is why it is so often used for the manufacturing of refractory substances.
Aluminum oxide is a solid that can hardly be dissolved in water. Although it is easily absorbed moisture, aluminum oxide does not deliquescence. It does not absorb moisture after being burned. Aluminum oxide, a common amphoteric compound (corundum has an alpha-shaped shape and is resistant to acid and corrosion), is almost insoluble and insoluble in organic solvents and water; relative density (d204), 4.0; melting points 2050.
Application of nano-alluminium oxide
Coating material for lithium-ion battery separators:
The ceramic coating of Nano-Aluminum Oxide, a high-purity nano-aluminum oxide, is used for the negative and positive electrode separators in lithium batteries. It plays a key role in high-temperature resistance and insulation. The battery is short-circuited after it has been melted.
Materials additives for lithium batteries cathode materials:
Nano-Aluminum dioxide high-purity, doped lithium cobalt or lithium manganate. Can improve thermal stability and cycle performance as well as overcharge resistance. It also inhibits oxygen generation and LiPF6 decay. The electrochemical specific capacitiy loss can be reduced, which will increase LiCoO2’s Electrochemical Specific Capacity.
Carriers Catalyst
High-purity g-type Nano- Aluminum oxide A porous material with a high level of activity and strong adsorption, it has an internal surface area up to hundreds if not thousands of square metres per gram. It’s a common adsorbent, catalyst and carrier in the petroleum refinery and petrochemical industries. Its drying ability is comparable to that of the phosphorus pentoxide. You can reuse it after use by heating the container at 175C for 6-8h.

Anti-caking powder coating
The use of nano aluminum oxide in powder coatings is a great way to increase bulkiness. It also has an anti-caking function. Nano-Aluminumoxide can prevent powder coatings agglomerating during summer.
Use this wear-resistant hardener to protect coatings, rubber, or plastics
A prepared coating that contains 5-20% Nanoaluminum oxide can be greatly improved in wear resistance and scratch resistance. The coating is typically 2-5 times stronger than conventional coatings. Nano-Aluminumoxide can be used to create a fine network structure on the paint’s surface that protects the polymer paint layers below. Nano paint’s anti-scratch ability is 3x better than that of original. This paint can be widely used for automobile paints. Nano aluminum oxide, which can increase the coating’s hardness by about 20%, can make it as high as 6-7H. This does not impact the transparency of coating.
Plastics, rubbers adhesives, coatings and plastics with thermal conductivity:
A single aluminum oxide crystal has a thermal conductivity value of 30. However, Nano-scale Aluminum dioxide has a very high thermal conductivity. It also has large amounts of spherical filled. Coupling agents, which are surface treatments agents that improve thermal conductivity without altering the mechanical properties of the matrix material, can be useful to increase compatibility between resin and filler.
High purity and uniform size of the nano-alluminum oxide particles make it very dispersible. VK-30 can be used to raise the molding pressure of sintered ceramics and decrease the number pores. This will increase density in the ceramic green body and enhance the mechanical properties and density of Aluminum oxide ceramics.
Powder metallurgy
Nano Aluminum oxide can be used for metalurgical purposes, having small particles, high specific surface area and high activity. To prevent matrix densification and to increase the crystal grains, Nano Aluminumoxide is added at 1-3%. This will enhance hardness and conductivity.
Aluminum oxide features uniform particles with a very spherical form. Aluminum oxide is used as a polishing material and for metalographic polishing. You can use it for mirror polishing in stainless steel, titanium, cast iron, and stone polishing.

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