The preparation
Aluminum oxide can broadly be divided into 3 categories, which are gas phase methods, liquid phases, and solid phases.
Gas phase method
The laser inducedvapor deposition technology is used to stimulate a temperature high enough to allow reactants to rapidly react and produce ultrafine micro-particles. The small embryos that are created will continue to grow. Once they exit the laser area they will stop growing rapidly and then the micropowder will go into the collector. Next the procedure will be repeated to create the nano powder.
An oxygen atmosphere is created when the anode-cathode plates are in contact with each other. The aluminum salt reacts to air and forms an oxide. This product then undergoes rapid cooling to produce nano alumina, fine particles. Finally, remove it from the heat.
Chemical gas-phase deposition refers to the situation in which the temperature of aluminum chloride exceeds the critical reaction temp.
The reactionant vapor, which forms a high saturated vapour pressure, condenses automatically to form large quantities of crystal nuclei.
Liquid phase method
The liquid-phase method (also known as the chemical method) is most widely used for the synthesizing of nano-alumina. There are three possible ways to further split the liquid-phase method: a precipitation process, a solgel method and others.
Solid phases method
Mechanical grinding
It is simple to prepare nano-alumina using mechanical grinding. Once the raw material is ground (for example, kaolin), then it’s possible to extract nano-aluminum oxide by using a grinding machine. The downside to this method is the difference in the particle size as well as the noise generated during manufacturing.
Chemical Piroly
For nano alumina to be produced, aluminum ammonium Sulfate needs to first go through multiple purifications. There may be some toxic gases like sulfur trioxide gas that are produced in the preparation.
This improvement to the ammonium-alcohol sulfatepyrolysis procedure saves you several times.
The basic characteristics of nanomaterials are not the only thing that nano-alumina can do. Nano-alumina displays a variety of exceptional properties and is widely used in ceramics as well as anti-corrosion.
ceramic material
Alumina ceramics are excellent in all aspects, such as mechanics and high temperature resistance. Alumina is the most common ceramic material in the world. Nano-scale Alumina is able to improve strength, toughness and plasticity. The material performs much better.
Material surface protection
Nanoalumina has unique properties that can dramatically improve the surface properties of the material as well provide protection.
Polymer modification
Nano-alumina development has seen polymers rapidly modified. These polymers are now widely used. Modification of other polymers to fit the specific needs.
Composite materials
The unique qualities of nano-alumina play an important role when it comes to composite materials.
Adsorbent material
You can also use nano alumina to absorb metal ions.
Application to sensors
The sensors’ nano-alumina film, used to detect the release by mice of nitric acid, was satisfactory. This indicates that this sensor may have potential applications.
Catalyst for and carriers applications
Additionally, nano alumina has many important uses in the abrasives market. Nano-scale composite abrasives that are small enough to grind can also be made.
Cataniadagiocare, Cataniadagiocare advance material Tech Co., Ltd., a leading manufacturer of aluminum dioxide, has more than 12 year experience in chemical products development. Send us an inquiry.
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