What Are The Upmarket Applications for Ultra-fine Alumina Powder

(What Are The Upmarket Applications for Ultra-fine Alumina Powder )

Modern industry cannot function without ultrafine alumina. Alumina powders with ultrafine or fine grain have a different surface electronic structure, and the crystal structure has also changed. This leads to surface effects, and smaller sizes, that cannot be found in macroscopical objects. The material has excellent properties including high strength and hardness, corrosion resistance and high temperature resistance. It also exhibits macroscopic quantum tunneling and quantum effects. Bioceramics are used widely in aerospace light source devices, as well as rare earth trichromatic pigments and integrated circuit chips. 1. Ceramic materials and composites:

In conventional ceramics the addition of ultrafine powder alumina can increase the toughness and reduce the sintering temp. It is possible to obtain low temperature ceramics due to the superplasticity and the ultrafine alumina. Applications are wide.

With the use of ultrafine alumina, a new type composite ceramic material can be synthesized with special functions. This also includes aluminum alloy ultrafine composite materials. SiC-Al2O3 is the most important of these materials, with a flexural resistance that increases from 300-400MPa to 1GPa.

The ultra-fine alumina powder can also be added to dispersion as an additive and for strengthening. Ultra-fine alumina can also be used in the metamorphic nucleation of cast iron to increase wear resistance.

2, Surface protective layer material:

A new transparent ultra-thin material consisting ultra-fine particles of alumina coated on metals or ceramics can be used to improve the surface hardness and corrosion resistance of materials, such as plastics, hard alloys, and ceramics. Other functions include anti-fouling. This material can be used for surface protection on machinery, tools and chemical pipes.

This tool has the advantage of combining ceramics and cemented-carbide materials. It is as tough and hard as cemented-carbide, but with a much higher wear resistance. It can be multiplied many times, and processing efficiency is greatly improved.

3. Catalysts and their carriers:

Alumina ultra-fine has a good pore-size distribution, a high pore-volume, atomic-coordination on the surface (60-400m2/g), and a surface with fewer mismatched and under-oxygen bonding. This leads to softer surfaces and fewer mismatched and under-oxygen bonding as the particle size decreases. A catalyst or catalyst carrier with a high contact surface is ideal for degradation, creating an uneven atomic structure, and increasing the chemical reaction’s contact area. The HDS of ultrafine alumina particles loaded Co-Mo is higher than the HDS of common alumina particles loaded Co-Mo. The HDS of the catalyst.

The main application of catalyst and carrier is g-Al2O3, which is widely used in automobile exhaust gas purification, catalytic combustion, hydrodesulfurization, petroleum refining, and polymer synthesis.

4. Bio- and medical materials

The ultrafine alumina ceramic bioceramic is not significantly corroded in a physiological milieu and has a good structural compatibility. The porous ceramic surface bonds well with body tissue, as the new tissue grows in the pores. It also has a high level of strength, a low coefficient of friction, and possesses a low rate for wear. This material is widely used for artificial bones, joint restoratives, root implant, fractured braces, and internal fixation devices. It has also been successfully used for alveolar expansion and reconstructions of maxillofacial defect. Whether you need facial features or repairs.

Research is currently focused on the development of bioceramic materials which simulate biological functions, artificial intelligence, and soft tissues such as artificial lungs.

Semiconductor materials

Ultra-fine powder alumina is sensitive to external moisture because of its large surface area. Changes in the ambient temperature can cause rapid changes to surface or interface electron transport, and also ion valence. Ultra-fine alumina AC isoelectric impedance changes linearly between humidity 30 – 80%. This AC impedance has fast response, high reliability and sensitivity. It is a moisture sensitive sensor that can be used with a wet electric thermometer.

The ultra-fine alumina substrate is also a common material. It has good electrical insulation and chemical durability. Substrate Materials for Devices and LSIs Are Widely Used in the Microelectronics Industry, Electronics, and Information Industries.

6 Optical materials

Nanoscale Alumina absorbs ultra violet light. When excited with certain wavelengths, it produces light waves that correspond to particle size. It can serve as a protective film on the phosphor layer of a compact fluorescent light.

Ultra-fine Alumina is an excellent absorber of ultra-violet light. The addition of ultra-fine Al2O3 to compact fluorescent bulbs can improve lamp yield and reduce light decay.

The alumina is coated on the surface with a layer that is non-hazardous and can be used in sunscreens or cosmetics.

This is because ultrafine powder alumina has an array of superior electrical, magnetic optical, mechanical, and chemical macroscopic characteristics compared with traditional particles. High purity ultrafine powder alumina has become the new research field for materials in recent years. One of these directions.

Tech Co., Ltd., a chemical products manufacturer with 12 years of experience, is a leading ultra-fine alumina product manufacturer. Contact us if you need high-quality ultrafine alumina.

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(What Are The Upmarket Applications for Ultra-fine Alumina Powder )