The modern industrial sector is dependent on ultrafine alumina. The crystal structure of ultrafine-grained alumina do not change, and the surface effect and size are different from those found in microscopic objects. These effects include quantum effects as well as macroscopic quantum tunneling effects. The powder has excellent properties, including high strength and hardness. It is also resistant to abrasion, high temperatures, oxidation, and high resistance. They have been extensively used as precision ceramics for bioceramics, chemical catalysts, rare earth trichromaticphosphors, integrated circuit chip and light source devices. 1. Materials made of ceramics and composite materials
In conventional ceramics, ultrafine alumina can be used to increase toughness and decrease the sintering temp. Because ultrafine aluminum powder is superplastic, it eliminates the limitations on the use of low temperature plastics. This is why low temperature plastic ceramics are made. Many applications.
Ultra-fine aluminum powder is also able to produce a novel type of composite ceramic material and an alloy ultra-fine material. SiC–Al2O3 ultrafine composite material is most notable. With a flexural strength of 300-400 MPa, it can be increased to 1 GPa with single-phase silica carbide ceramics. Also, the material has a greater fracture toughness by over 40%.
As a dispersion additive and strengthening agent, ultra-fine Alumina is also available. When cast iron laps have been cast, the ultra-fine powdered alumina is used for metamorphic nucleation. The wear resistance can then be increased by several hundred times.

2, Surface protective layer material:
The new, ultra thin transparent material is composed of ultrafine alumina particles that are coated on surfaces of metals. Ceramics, plastics, and hard alloys. This can improve the resistance to corrosion, wear resistance, surface hardness and wear resistance. This material can be used for surface protection on machinery, tools, pipes and other similar items.
One of these is the ultra-fine aluminum ceramic coating tool. This combination of cemented caride and ceramic materials has many advantages. The wear resistance and toughness are greatly increased, as well as the ability to coat more tools. This multiplies the process efficiency by many times, and it is easily repeated.

3. Catalyst & its carrier
Ultra-fine Alumina exhibits a high degree of pore size distribution and surface area, with a maximum of 60 to 400 m2/g. It also has a large number of mismatching bonds, under-oxygen and surface smoothness due to the reduction in particle size. The ideal catalyst is a catalyst or catalyst carrier. It can cause a deterioration and create an uneven step. HDS activity is greater in the Co-Mo ultrafine-alumina catalyst with particle-loaded Como than for the Co-Mo common alumina-loaded Como. The catalyst's HDS activity.
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. Medical and biological materials
The bioceramic ultrafine alumina does not significantly corrode in normal environments. It is also very structurally compatible. Because the new tissue grows in the pores on the porous ceramic, the bond strength to the body tissue is high. This makes it a popular choice in medical practice. It can be used to make artificial bones and root implants. This device can also be used for alveolar expansions and the reconstruction of maxillofacial problems. It can also repair or modify facial features.
Research is currently being done on tissue materials, such as artificial airways and bioceramic materials, that emulate biological functions, artificial intelligence, etc.

5, Semiconductor materials
Ultrafine alumina is powder with a large surface and interface. It's very sensitive to external moisture. Temperature changes quickly can cause changes in interface ion transport and surface temperature. Ultra-fine alumina AC resistance changes linearly between humidity levels of 30-80%. The AC response is quick, reliable, high-sensitivity, low-pollution, and it can be kept in dusty and smoke environments. This sensor is ideal for moisture sensing and can also be used as a wet-electric thermometer.
Additionally, ultra-fine aluminum is an extremely common substrate material that can be used for semiconductors. This has many advantages including electrical insulation, chemical endurance, strong radiation resistance and heat resistance. The microelectronics industry, electronics, as well as the information and communications industries use a variety of substrate materials and LSIs.

6, Optic materials
Nanoscale Alumina absorbs ultraviolet radiation and produces light waves at wavelengths related to particle size. You can use it as a protective film to the phosphor layer of a compact fluorescent lamp. Additionally, you can combine it with rare earthphosphor to make a luminescent substance for fluorescent tubes to increase the tube's life.
The ultra-fine alumina can also be used as an anti-ultraviolet absorber. To reduce lamp light decay, and to increase the lamp yield, you can add ultrafine gAl2O3 powder.
Non-hazardous, non-hazardous Polymer is used to coat the surfaces of alumina granules. It can also be used as a cosmetics base and sunscreen.
This is because ultrafine particles of alumina have superior mechanical, electrical and chemical properties than conventional particles. High purity ultrafine Alumina Powder has emerged as a promising new field of material research in the last few years. One direction.

Luoyang Tech Co., Ltd, a leading manufacturer of ultra-fine Alumina Powder, has more than 12 years' experience in chemical product research and development. We are available to assist you with high quality, ultra-fine Alumina Powder. Send an inquiry .

tags: Semiconductors semiconductor industry