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What Are The Upmarket Applications for Ultra-fine Alumina Powder?

Posted on 2022-12-18 By admin

Alumina powder ultrafine is essential in the modern industry. Surface electronic structure and crystal structure of ultrafine and very fine-grained aluminum powder have been modified, leading to surface effects and tiny sizes not seen in macroscopic items. There are effects, quantum effects, macroscopic quant tunneling effects, as well as effects, quantum effects, which have outstanding properties. These include high strength, high hardness. They are widely used today in the aerospace lighting source device, precision ceramics as well as bioceramics.
1. Composite and ceramic materials
Conventional ceramics may be strengthened by the addition of ultrafine aluminum powder. This will also lower the sintering point. Alumina powder that is ultra-plastic can overcome the limits of low temperature applications. It can be used in many ways.
It is possible to synthesize new types of composite ceramic materials with specific functions using ultrafine alumina. SiC -Al2O3 Ultra-fine Composite Material is the most important. This material can increase its flexibility from 300-400 MPa up to 1 GPa single-phase silicone carbide ceramics. Furthermore, the material can be fracture-resistant by 40%.
Also, dispersion strengthening or additives can be done with ultrafine alumina. If cast iron laps need to be cast, then ultra-fine Alumina Powder can be used as metamorphic Nucleation. It is possible to improve the wear resistance by up to tenfold.
2, Surface protective layer material:
An ultra-thin transparent material that is coated with ultra-fine alumina flakes on the surface metals, ceramics or plastics. The purpose of this new material, which is ultra-thin and translucent, is to increase surface hardness, corrosion resistance, wear resistance, wear resistance as well as dust and waterproof functions. These features can help solve problems such as easy wear parts in industrial production, easy corrosion of pipes and indirect affects the equipment’s service life and accuracy. The material is suitable for protecting machinery, tools, chemicals pipes and similar surfaces.
One is the ultrafine alumina clay coating tool. It has all the characteristics of ceramic material and cemented-carbide material. Processing efficiency can be dramatically improved as it’s multiplied several times.
3. Catalyst und its transporter:
Ultra-fine Alignment has excellent pore distribution, high pore volume and surface area up to 60-40 m2/g. Surface atomic coordination is also a key feature. There are many mismatching or under-oxygen bonds along the surface. Also, the particle size decreases, making the surface more smooth. It is a great catalyst or catalyst carrier because it can cause deterioration and create an uneven step. HDS activity of Co-Mo’s ultrafine, alumina particle-loaded Co=Mo catalyst is significantly higher than that common Co=Mo. It has high HDS activity.
The main application of catalyst and carrier is γ-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 bioceramic doesn’t significantly corrode when exposed to physiological conditions and is structurally compatible. Because new tissue can grow in the pores, it bonds well with other body tissues. Because of this, it is widely used in clinics. This has allowed for the production and use of artificial bones, joint restorations as well root implants and fractured splints. It is also capable of performing alveolar and maxillofacial ridge expansions. You can make repairs or changes to your facial features.
Research at the moment is on soft tissues materials, including artificial airways.
5, Semiconductor material:
Ultra-fine powdered alumina has a high interface and surface area, making it very sensitive for moisture from the environment. Rapid changes in ambient temperatures can lead to significant differences in electron transport or surface ion valence. Within the humidity range from 30-80%, the ultrafine alumina AC Impedance changes linearly. This is due to fast response, high reliability and high sensitive. Also, this AC will not change in the presence of other pollutants or gas erosion. Perfect for wet and humid sensors, this sensor has excellent detection accuracy.
The most common sub-material material is ultra-fine aluminium. It has excellent electrical insulation, chemical endurance, heat resistance. strong radiation resistance. uniform surface. low cost. Many sub-materials for devices and the LSIs used in microelectronics electronics, information, and other industries.
6, optical materials:
Nanoscale-sized alumina can absorb ultraviolet light. When excited by certain wavelengths, light waves are produced that correspond to specific particle sizes. To improve tube life, it can be used in protective films for the phosphor layers of compact fluorescent lamps.
An excellent anti-ultraviolet absorber is ultrafine alumina. Addition of ultrafine Al2O3 powder in compact fluorescent lamps may reduce lamp light degradation and improve lamp yield.
An extra layer of nonhazardous polymer coats the surface of the Alumina Granules.
The reason is that ultrafine Alumina Powder has superior mechanical, chemical, and electrical properties than traditional particles. The world has recently discovered that ultrafine alumina is a novel material. One example.

Luoyang Trunnano Tech Co., Ltd., also known as TRUNNANO, is a highly-experienced manufacturer of ultrafine alkali powder. Do you want high quality ultrafine alumina dust? Please feel free contact us.

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