What is aluminum nitride
Aluminum nitride is an atomic crystal, belonging to diamond-like nitride, hexagonal crystal system, wurtzite crystal structure, non-toxic, white or off-white.
How do you make aluminum nitride? Carbothermal reduction method
The synthesis of AlN involves the heat treatment of aluminum oxide or aluminum hydroxide at 1400-1800°C under nitrogen or ammonia in the presence of carbon as a reducing agent.
What is aluminum nitride used for
Nowadays, most research is developing a light emitting diode based on semiconductor (gallium nitride or alloy aluminum gallium nitride) and working under ultraviolet light, the light emitting diode has a wavelength of 250 nanometers. Aluminum nitride is used in optoelectronic engineering, including as a dielectric layer in optical storage interfaces and electronic substrates, as a chip carrier with high thermal conductivity, and for military applications.
Due to the characteristics of the piezoelectric effect of aluminum nitride, the epitaxial stretching of aluminum nitride crystals is also used in surface acoustic wave detectors. The detector will be placed on the silicon wafer. There are few places where these films can be reliably manufactured.
The use of aluminum nitride ceramics has high room temperature and high temperature strength, small expansion coefficient and good thermal conductivity. It can be used as a heat exchange material for high temperature structural parts.
Aluminum nitride ceramics can withstand the corrosion of iron, aluminum and other metals and alloys. It can be used as a crucible and casting mold material to melt metals such as Al, Cu, Ag and Pb.
How to package and ship aluminum nitride powder
For powder packaging, vacuum packaging is usually used, and there are 4 general packaging specifications of 100 grams, 500 grams, 1 kg/bag, and 25 kg/barrel. Of course, it can also be packaged according to specific requirements.
The rapid inactivation of SARS-CoV-2 by silicon nitride, copper and aluminum nitride
Successfully inactivated SARS-CoV-2. The mechanism of action is surface release mediated by the hydrolysis of nitrogen-containing disinfectants. Aluminum nitride and copper are also effective for virus inactivation. However, although the former compound affects cells, the latter compound has a cytopathic effect. Further research is needed to verify these findings, and to investigate whether silicon nitride can be incorporated into personal protective equipment and commonly touched surfaces as a strategy to suppress virus persistence and disease transmission.
Aluminum nitride ceramic substrate will help China's sensor market
In microelectronics, the smaller the feature size of the integrated circuit, the higher the integration of the device, the faster the running speed, and the better the performance. The small size of sensors in IoT systems also means that the system has been deployed. It is more convenient and has better performance. But at the same time, the hardware requirements are higher. Its core is the sensor chip. At present, there are few large-scale sensor manufacturers in China, mainly small and medium-sized manufacturers. Chip materials are mainly FR-4 substrates and aluminum substrates. However, in developed countries, aluminum nitride ceramic substrates have been used on a large scale. Aluminum nitride ceramic substrate has better stability, better insulation capacity and ultra-high thermal conductivity.
Overview of aluminum nitride AlN powder
The spherical aluminum nitride is prepared by the laser flame jet melting method, and the obtained product has high purity, uniform particle size distribution, clean surface, high sphericity, no residual impurities, easy dispersion and good biological compatibility. Spherical alloying treatment has high thermal conductivity (340W) and heat transfer.
Application of aluminum nitride AlN powder
1. After the second laser melting, the spherical alloy is alloyed with uniform size and good fluidity, which improves the thermal conductivity and insulation of the material.
2. After the spherical aluminum nitride is melted, the surface is treated with anti-hydrolysis and anti-oxidation, and the thermal conductivity will exist for a long time after adding.
3. Spherical aluminum nitride has good injection molding properties and can be used in composite materials. It has good matching with semiconductor silicon and good interface compatibility, which can improve the mechanical properties and thermal conductivity of composite materials.
4. Application in high thermal conductivity plastics: Modified spherical aluminum nitride powder can greatly improve the thermal conductivity of plastics. Currently, it is mainly used for PVC plastics, polyurethane plastics, PA plastics, PP plastics, functional plastics, etc.
The price of aluminum nitride AlN powder
The price of aluminum nitride AlN powder will vary randomly with production cost, transportation cost, international situation and market supply and demand of spherical aluminum nitride. Provide customized services of high-quality, low-cost nanomaterials and chemicals. If you are looking for aluminum nitride, please feel free to send an inquiry to get the latest price of spherical aluminum nitride.
Suppliers of spherical aluminum nitride
As a global supplier of spherical aluminum nitride, Tanki New Materials Co. Ltd has extensive experience in advanced, engineered material performance, application and cost-effective manufacturing. , Titanium Nitride, etc.), high-purity targets, functional ceramics and structural devices, and provide OEM services.
Chemical Composition of Aluminum Nitride AlN powder
| AlN | N | Fe | Mn | O | C | Ca | Si | Ni |
| ＞99.9% | ≥32% | 0.04 | 0.0005 | ≤0.42 | 0.02 | ≤0.009 | ≤0.045 | 0.0002 |
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