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Application of Spherical Alumina

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Update time : 2022-01-05 10:52:44

The properties of spherical alumina

Ultra-fine 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 metallurgy, chemical industry, electronics, national defense, aerospace and nuclear industries, etc. High-tech field.

Application of spherical alumina

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, which can be made into low-temperature plastic spherical alumina ceramics; adding 5.0% nano-spherical alumina powder to conventional ceramics The body can effectively increase the toughness of ceramics and reduce the sintering temperature of ceramics.


2. Composite materials

Nano-spherical alumina powder can not only be used to synthesize new composite ceramic materials with special properties, but also can be used to make artificial teeth and bones.


3. Surface protective coating

Spherical alumina powder particles are sprayed on metals, plastics, etc., which can greatly improve the hardness, corrosion resistance, wear resistance and fire resistance of the surface, and can be used for surface protection such as machinery, knives and chemical pipelines.


4. Optical materials

Nano-sized spherical alumina powder has a strong absorption capacity for ultraviolet light below 250nm. If a few nanometers of spherical alumina powder is doped into rare earth phosphors, the blue shift phenomenon of nano-ultraviolet absorption can be used to absorb it. Harmful ultraviolet light, and it will not reduce the luminous efficiency of the phosphor. Nano-spherical alumina can be sintered into transparent ceramics as the material of high-pressure sodium lamps and can be combined with rare-earth phosphors as the luminescent material of the luminous lamp. It will not only reduce the cost but also extend the life of the luminous lamp, it will be the main fluorescent material for the manufacture of luminous lamps in the future.


5. Semiconductor materials

Nano-scale spherical alumina powder is extremely sensitive to humidity, has extremely high application value in temperature sensors, and can be widely used as a substrate material for large-scale integrated circuits.


Luoyang Trunnano Tech Co., Ltd (TRUNNANO) is a professional spherical alumina supplier 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 spherical alumina, please feel free to contact us and send an inquiry.

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