News

  • 0
  • 0

What are Aluminum Nitride Characteristics?

If you are looking for high-quality products, please feel free to contact us and send an inquiry, email: brad@ihpa.net



The U.S. and its allies plan to impose sanctions on more Russian industries and supply chains.

The US government representatives recently visited Europe to consult with allies on strengthening and enforcing sanctions to punish Russia. They also plan to take action to disrupt their critical supply chains.

The US government claims that the sanctions imposed on Russia since the invasion began on February 24 have proved extremely effective, plunging Russia into a financial crisis. The sanctions include a freeze on the Russian central bank's foreign exchange assets, a ban on hard currency transactions by major Russian banks and wealthy individuals, and export restrictions on advanced semiconductors and other technologies. The sanctions have weakened the Russian economy and left the Kremlin with fewer resources.

The volatile international political situations will continue to affect the markets and prices of many commodities like the AlN powder.


Aluminum Nitride Research History
Aluminum nitride is a kind of ceramic material with excellent comprehensive performance, and its research can be traced back more than 100 years ago. It was discovered by F. Birgeler and A. Gutter in 1862, and synthesized by J.W. Mallets for the first time in 1877, but there was no practical application in the following 100 years. It was used as fertilizer only as a nitrogen-fixing agent.
 
Aluminum nitride is a covalent compound with a low self-diffusion coefficient and high melting point, which makes it difficult to sinter. It was not until the 1950s that the first aluminum nitride ceramics were successfully made and used as refractory materials in the smelting of pure iron, aluminum, and aluminum alloys. Since the 1970s, with the deepening of research, the preparation technology of aluminum nitride has become increasingly mature, and its application scope has also been expanding. Especially since the 21st century, with the rapid development of microelectronics technology, electronic machine, and electronic components is toward miniaturization, light-duty, integration, as well as the development direction, such as high reliability and high power output, more and more complex heat dissipation device to the substrate and packaging material put forward higher request, to further promote the vigorous development of the industry of aluminum nitride. 
 

Aluminum Nitride Characteristics
Structure
Aluminum nitride (AlN) is a hexagon wurtzite covalent bond compound with lattice parameters A =3.114, C =4.986. Pure aluminum nitride is blue-white, usually gray or off-white, and is a typical iii-wide bandgap semiconductor material. 



Performance
Aluminum nitride (AlN) has the characteristics of high strength, high volume resistivity, high insulation and pressure resistance, thermal expansion coefficient, and a good match with silicon, not only used as a sintering agent or strengthening phase of structural ceramics, especially in the field of ceramic electronic substrate and packaging materials in recent years, its performance is far superior to alumina. 
 

Aluminum Nitride Thermal Conductivity Mechanism
Of the series of important properties of aluminum nitride, the most remarkable is its high thermal conductivity. A great deal of research has been done on the thermal conductivity mechanism of aluminum nitride, and a relatively perfect theoretical system has been formed. The main mechanism is heat transfer through lattice or lattice vibration, that is, by lattice wave or thermal wave. The results of quantum mechanics tell us that lattice waves can be treated as the motion of a particle, the phonon. Thermal waves also have wave-particle duality. Thermal phonons transfer heat through mutual restriction and coordination of vibrations among structural elements (atoms, ions, or molecules). If the crystal is a non-elastic body with a perfect structure, the heat can be transferred freely from the hot end of the crystal to the cold end without any interference and scattering, and the thermal conductivity can reach a very high value. The thermal conductivity is mainly controlled by crystal defects and phonon scattering.
 
The theoretical thermal conductivity of AlN can reach 320W·m-1·K-1, but the actual thermal conductivity of AlN is less than 200W·m-1· k-1 due to impurities and defects in AlN. This is mainly because the structural elements in the crystal cannot have a completely strict uniform distribution, and there are always different sparse and dense regions, so the current-carrying phonons will always be interfered with and scattered in the propagation process.
 

Aluminum Nitride Price
The price is influenced by many factors including the supply and demand in the market, industry trends, economic activity, market sentiment, and unexpected events.
If you are looking for the latest AlN price, you can send us your inquiry for a quote. ([email protected])
 

Aluminum Nitride Supplier
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and Nanomaterials, including silicon powder, nitride powder, graphite powder, zinc sulfide, calcium nitride, 3D printing powder, etc.
If you are looking for high-quality aluminum nitride, please feel free to contact us and send an inquiry. ([email protected])

 

U.S. oil prices surged about 10% to $105.14 a barrel. This is the highest level since 2014. The world benchmark Brent stock futures oil price soared by about 8% to $105.40 per barrel. The most direct rise in crude oil is inflation. The rise in oil prices means that people's food, clothing, housing, AlN powder also fluctuates. If you want to know the AlN powder, please feel free to contact us.

Inquiry us

SCR Thyristor: Principles, Characteristics and Maintenance of Semiconductor Switches

High Purity Chromium Chip Chromium Sheet Chromium Flake CAS 7440-47-3,99.95%

Metal Alloy 8.92g/Cm3 High Purity Polished Copper Plate

Metal Alloy 18.5g/cm3 Polished Tungsten Heavy Alloy Plate

High Purity Antimony Sulfide Sb2S3 Powder CAS 1314-87-0, 99.99%

Metal Alloy 18g/cm3 High Density Tungsten Alloy Ball

High Purity Molybdenum Boride MoB2 Powder CAS 12006-99-4, 99%

High Purity Nano Hafnium Hf powder CAS 7440-58-6, 99%

Metal Alloy High Density Tungsten Alloy Rod Grind Surface Tungsten Alloy Bar

High Purity Germanium Sulfide GeS2 Powder CAS 12025-34-2, 99.99%

High Purity Chromium Diboride CrB2 Powder CAS 12007-16-8, 99%

High Purity Tungsten Silicide WSi2 Powder CAS 12039-88-2, 99%

High Purity Titanium Sulfide TiS2 Powder CAS 2039-13-3, 99.99%

High Purity 3D Printing Powder 15-5 Stainless Steel Powder

High Purity Nano Ag Silver powder cas 7440-22-4, 99%

High Purity Silicon Sulfide SiS2 Powder CAS 13759-10-9, 99.99%

High Purity Zirconium Nitride ZrN Powder CAS 25658-42-8, 99.5%

Supply Magnesium Granules Mg Granules 99.95%

High Purity 3D Printing 304 Stainless Steel Powder

High Purity Colloidal Silver Nano Silver Solution CAS 7440-22-4

Our Latest Products

SCR Thyristor: Principles, Characteristics and Maintenance of Semiconductor Switches

A brief introduction to thyristorsA thyristor is a powerful electronic device. It is a three-terminal component composed of four layers of PNPN semiconductor materials. Its forward working voltage is equal to the reverse breakdown voltage. This is re…

Metal Alloy 8.92g/Cm3 High Purity Polished Copper Plate

Copper products exhibit good electrical conductivity as well as thermal conductivity. They are also ductile, resistant to corrosion, and have a high wear resistance. They are widely used by the electricity, electronics and energy industries. Metal…

Metal Alloy 18.5g/cm3 Polished Tungsten Heavy Alloy Plate

Tungsten alloy heavy plate has low thermal expansion. It is also known for its high density, high radiation absorption, and high electrical and thermal conductivity. It is used widely in the aerospace and military industries. About Metal Alloy 18.5…