Spherical alumina Al2O3 has excellent characteristics

Overview of Spherical Aluminum Oxide Al2O3 Powder

Alumina is an inorganic substance with the chemical formula Al2O3.It is a compound with high hardness.It has a melting point of 2054°C and a boiling point of 2980°C.It is an ionic crystal that can be ionized at high temperatures.It is often used in the manufacture of refractory materials.

Spherical alumina has excellent characteristics such as corrosion resistance,high-temperature resistance,high hardness,high strength,wear resistance,oxidation resistance,good insulation and large surface area.It is widely used in high-tech fields such as metallurgy,chemical industry,electronics,national defense,aerospace and nuclear industry.

The preparation methods of spherical alumina mainly include the sol-emulsion-gel method, drop bead method,homogeneous precipitation method, template method,aerosol decomposition method, spray method and so on. Spherical alumina produced by the high-temperature melt spraying method has the characteristics of high sphericity and high content of α-phase alumina.It shows the superior performance when used as a filler for rubber,plastics and ceramic materials.

In addition,spherical alumina has the following characteristics:

1.High filling

It has high particle sphericity and wide particle size distribution.It can fill rubber and plastics with high density and can obtain a mixture with low viscosity and good fluidity.

2. High thermal conductivity

Because it can be filled with high density,compared with crystalline silicon powder,a mixture with high thermal conductivity and good heat dissipation can be obtained.

3. Low abrasion

Because of its spherical appearance,the abrasion of equipment such as mixer,molding machine and mold is greatly reduced,and the service life of the equipment can be prolonged.

Spherical alumina is often used to make heat sinks,fillers for heat dissipation substrates (MC substrates),heat dissipation greases,phase change sheets;fillers for semiconductor packaging resins;fillers for silicone heat dissipation adhesives and mixtures; ceramic filters.

Applications of Spherical Aluminum Oxide Al2O3 Powder

The applications of spherical alumina are as follows:

1.Ceramic additives

Adding a certain amount of nano spherical alumina powder can effectively solve the shortcomings of ceramics due to low-temperature brittleness and narrow application range,and can be made into low-temperature plastic spherical alumina ceramics; adding 5.0% nano spherical powder to the conventional ceramic matrix can effectively improve the ceramics The viscosity reduces the sintering temperature of ceramics.

2. Composite materials

Nano-spherical alumina powder can completely synthesize new composite ceramic materials with special properties,and can also be used to make artificial teeth and artificial bones.

3. Surface protective coating

Spherical powder particles sprayed on the surface of the metal,plastic,etc.,can greatly improve the surface hardness,corrosion resistance,wear-resistance and fire resistance,and can be used for surface protection of machinery,tools,chemical pipelines,etc.

4 reflections.Optical materials

Spherical nano alumina powder has a strong absorption capacity for ultraviolet rays below 250nm.If a few nanometer spherical alumina powder is replaced in the rare earth phosphor,the blue shift phenomenon of nano-ultraviolet absorption can be used to absorb it.Ultraviolet rays are harmful and will not reduce the luminous efficiency of phosphors.life.

5. Semiconductor materials

Nano spherical powders are extremely sensitive to humidity,have extremely high application value in temperature sensors,and can be widely used as substrate materials for large-scale integrated circuits.

6. Catalyst and its carrier

After being pressed into thin sheets,it will be rich in impurities,which can replace 30-40% and can be filled with porous membrane filters.The performance of the prepared catalyst and catalyst carrier is several times higher than that of similar products currently used.

Spherical Aluminum Oxide Al2O3 Powder Price

Spherical Aluminum Oxide Al2O3 Powder price will vary randomly with the production cost, transportation cost,international situation,exchange rate,and market supply and demand of Spherical Aluminum Oxide Al2O3 Powder.Tanki New Materials Co.,Ltd Aims to help All industries and Chemical Wholesalers to find high-quality,cheap price Nanomaterials and chemicals by providing turn-key customize manufacturing services.If you are looking for Spherical Aluminum Oxide Al2O3 Powder,please feel free to send an inquiry for the latest price of Spherical Aluminum Oxide Al2O3 Powder.

Spherical Aluminum Oxide Al2O3 Powder Supplier

As a global Spherical Aluminum Oxide Al2O3 Powder supplier,Tanki New Materials Co.,Ltd has rich experiences in the properties,applications,and cost-effective manufacturing of advanced and engineered materials.The company has successfully developed a series of powder materials (including oxides,carbides,nitrides,single metal,etc.),high-purity targets,functional ceramics,and structural devices,OEM service is available.

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