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What is Aluminum Nitride

What is the term Aluminum Nitride?

Famous for its superior thermal conductivity and electrical insulating features, it makes an excellent material to create semiconductors. In light emitter lighting technology, it’s utilized as a heat sink.

Eigenschaften of Aluminum Nitride

Aluminum nitride is an inorganic chemical compound that consists of nitrogen and aluminium. It is part of the wurtzite-wurtzite Crystal Structure and it has a bandgap measurement of 6 eV at ambient temperature. This makes it ideal for use in the area of deep ultraviolet optoelectronics. It also functions as circuit carriers semiconductors.

Aluminum Nitride can be described as a dense technical ceramic that is available in thin and thick varieties. It is manufactured using a carbothermal reduction process. This process, however, can be costly, therefore there is a more economical method for powder preparation that needs to be investigated. Several sintering aids were also employed to raise the amount of material to specifications.

The use of aluminum nitride

Aluminum nitride can be used for optical components including nanotubes for chemical sensors. It is also used as a silicon substrate processing. It is extremely resistant to corrosion, oxidation and molten metals. It’s stable even at higher temperatures and in an inert environment.

Aluminum nitride can be discovered in any metal. It can be found in a gray-blue, white or gray powder. It is soluble in water and inorganic acids. But, it’s unstable in hydrogen atmospheres. It’s also extremely flammable.

It is utilized on mobile devices to create radiation frequency filters. It is also used in medical imaging and robotics. These properties are employed in bulk acoustic Resonators.

It has been reported that the bulk of current research focuses on the creation of semiconductor (GaN or AlGaN) made LEDs which function in the UV region, in which the wavelength is 250 nanometers. In May 2006 it was reported that a diode with inefficiency could emit light with one 210nm wavelength. A single crystal of aluminum nitride can have an energy gap as high as 6.2eV that is determined by vacuum ultraviolet reflectance. Theoretically, the energy gap permits certain waves with lengths of 200 nanometers to be able to pass through. However, when using it commercially, there are many challenges that need to be solved. The aluminum nitride compound is employed in optoelectronics. It is used as inductive layers used in optical storage interfaces as well as electronic chips, substrates for chip drivers that have high thermal conductivity, and military applications.

An epitaxial stretching technique for AlN crystals is additionally used in the surface acoustic wave detectors due to the characteristics and properties of AlN piezoelectric phenomenon. The detectors are put onto the silicon substrate. Only very few places can effectively make these thin films.

Aluminum nitride ceramics have high strength at room temperatures and higher temperatures, a modest expansion coefficient, and a high thermal conductivity. They are suitable to make heat exchangers structures that require high temperatures.

Utilizing the resistance to corrosion of aluminum, iron and other metals and alloys aluminum nitride-based ceramics can be used to make crucibles and casting molds to smelt Al, Cu, Ag Pb, and other metals.

Aluminum nitride ceramic powder supplier in China

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