What is Aluminum Nitride？ Aluminum Nitride(AlN) is a crucial ceramic material with outstanding physical and chemical properties widely used in electronic, optical, thermal management, and other fields. Structurally, aluminum nitride is a white or off-white crystal with a hexagonal crystal system and a space group of R3m. The lattice constants are a=0.3189nm and c=0.4982nm. The lattice structure of aluminum nitride is composed of Al atoms and N atoms, where Al atoms are located in the tetrahedral center of the lattice and N atoms are located in the octahedral center of the lattice. This structure gives aluminum nitride good electrical insulation and thermal stability. In terms of physical properties, aluminum nitride has characteristics such as a high melting point (2200℃), high hardness (Mohs hardness of about 9), and low density (3.26g/cm3). These properties allow aluminum nitride to be extremely resistant to wear and corrosion resistance even at extreme temperatures, and its low-density characteristics also make it have application potential in device lightweight. In terms of chemical properties, aluminum nitride has stable chemical properties, and it is not easy to react with water, acid, and alkali at normal temperatures and pressure. In addition, aluminum nitride also has good thermal conductivity and electrical insulation, and its thermal conductivity is as high as 170W/m·K, which is much higher than copper and aluminum, which makes aluminum nitride a wide range of applications in the heat dissipation of electronic devices.
Application of Aluminum Nitride Aluminium Nitride (AlN) is an important ceramic material with great chemical and physical properties widely used in electronic, optical, thermal management, and other fields. 1. Electronics field The application of aluminum nitride in the field of electronics mainly includes the heat dissipation and packaging of electronic devices. With the continuous development of semiconductor technology, the integration and power of electronic devices continue to increase, and the heat generated also increases correspondingly.
An effective heat dissipation scheme is needed to ensure electronic devices' stability and reliability. Aluminum nitride can be a fantastic material to cool electronic devices because of its excellent thermal conductivity as well as its low coefficient of thermal expansion. Heat dissipation of electronic devices As a high thermal conductivity material, aluminum nitride can effectively derive the heat generated by electronic devices and maintain the stable operation of devices. In power electronics, aluminum nitride is often used to make heat-dissipating elements such as substrates, heat sinks, and thermal pads. In addition, aluminum nitride can be combined with other high thermal conductivity materials to form a composite material to further improve the heat dissipation effect. Electronic device packaging In semiconductor packaging, aluminum nitride, as a high thermal conductivity and high voltage resistance material, is widely used in chip packaging, LED packaging, and other fields. In the packaging process, aluminum nitride can be used as a substrate material to connect the chip to the external circuit while playing a role in protecting the chip and heat dissipation. In addition, aluminum nitride can be used as a ceramic packaging material, providing good air tightness and thermal conductivity. 2. Optical field The application of aluminum nitride in the optical field mainly includes blue waveguide material, laser material, etc. Blue waveguide material Aluminum nitride has high transparency, stable physical properties, and unique advantages in preparing blue waveguide materials. Blue waveguide is an important optoelectronic device that can make key components in optical communication, information processing, and display. Aluminum nitride can fabricate substrates and waveguide structures of blue waveguide devices. It has the advantages of high transmittance, high stability, and high heat resistance. Laser material As an excellent laser material, aluminum nitride is widely used in laser diodes and fiber lasers. In laser diodes, aluminum nitride can be used as a substrate material, with high thermal conductivity and stability advantages. In fiber lasers, aluminum nitride can be used as a fiber cladding material, providing good optical properties and thermal conductivity. 3. Thermal management The application of aluminum nitride in thermal management mainly includes heat exchange materials and high-temperature structural materials. Heat exchange material Aluminum nitride is a great material for thermal conductivity and high-temperature stability. It offers a variety of uses in the field of exchange. Aluminum nitride can be used to make heat exchange tubes, heat sinks, and other components for electronic equipment, energy, chemicals, and other fields. High-temperature structural material Aluminum nitride has excellent high-temperature resistance and mechanical strength and can be used as a high-temperature structural materials. For example, aluminum nitride can be used in the aerospace sector to make high-temperature structural parts and antioxidant coatings.
Production Method of Aluminum Nitride Aluminum nitride can be produced by a variety of methods, mainly including the following:
Carbothermal reduction method
Carbothermal reduction is a common method for producing aluminum nitride. The process is a chemical reaction of aluminum and nitrogen at high temperatures to form aluminum nitride. The reaction equation is 2Al+N2→2AlN. The reaction temperature of this method is usually between 1200 and 1500℃, and the nitrogen pressure used is in the range of 1 to 20 bar.
Chemical vapor deposition
Chemical vapor deposition is the chemical reaction of reaction gases (such as alumina, ammonia, etc.) to produce aluminum nitride at high temperatures. The reaction equation is 2AlH3+3NH3→2AlN+3H2. The reaction temperature of this method is usually between 800 and 1000 ° C, and the ammonia pressure used is in the range of 1 to 10 bar.
Direct nitriding
Direct nitriding is the direct nitriding of aluminum or its alloys in high-temperature nitrogen. The reaction temperature of this method is usually between 600 and 800 ° C, and the nitrogen pressure used is in the range of 1 to 10 bar.
Sputtering method
The sputtering method uses the sputtering technology to place the aluminum target in the environment of nitrogen or ammonia and sputter the aluminum atoms on the substrate to form an aluminum nitride film through ion bombardment. The reaction temperature of this method is usually between 200 and 500 ° C, and the pressure range of nitrogen or ammonia used is 0.1 to 10Pa.
Prospect Market of Aluminum Nitride Aluminum Nitride (AlN) is an important ceramic material with high thermal conductivity, high-pressure resistance, low thermal expansion coefficient, and other advantages, and it is widely used in electronics, optics, thermal management, and other fields. With the continuous advancement in science and technology and the advancement of people's standard of living, the market demand for aluminum nitride has shown a growing trend. 1. Applications and market prospects in the field of electronics In electronics, aluminum nitride is widely used in the heat sink of high-power electronic devices, packaging materials for semiconductor lasers, etc. With the continuous development of semiconductor technology, the integration and power of electronic devices continue to improve. As a high thermal conductivity material, aluminum nitride can effectively solve the heat dissipation problem of electronic devices, so its market demand is also growing.
In electronics, the market prospect of aluminum nitride is very broad. With the constant development of emerging technologies, such as 5G and 5G, the Internet of Things, and artificial intelligence, the need for electronic gadgets will only continue to rise, driving the demand growth of the aluminum nitride market. In addition, the development of new energy vehicles, charging piles, and other fields will also promote the application of aluminum nitride in electronics and further improve the market demand for aluminum nitride. 2. the application and market prospects in the field of optics In optics, aluminum nitride manufactures high-end optical products such as blue waveguide devices and lasers. With the optoelectronic information industry's rapid development, the demand for high-end optical products such as blue waveguide devices and lasers is also increasing, which has driven the demand growth of the aluminum nitride market.
In optics, the market prospect of aluminum nitride is also very broad. With the continuous development of optoelectronic information technology, the application field of optical products will continue to expand, such as the rapid development of optical communication, optical information processing, optical storage, and other fields that will further promote the application of aluminum nitride in the optical field. In addition, with the continuous development of liDAR, laser ranging, and other technologies, aluminum nitride as a laser packaging material will also have a wider range of applications. 3. the application and market prospects of thermal management In thermal management, aluminum nitride is used to manufacture heat exchange materials, heat sinks, and other thermal control products. With the continuous development of technology in automotive, aerospace, national defense, and other fields, thermal control technology has attracted more and more attention. Aluminum nitride as a high-performance thermal control material is more widely used, and its market demand is growing.
In thermal management, aluminum nitride market prospects are also very broad. With the continuous development of technology in automotive, aerospace, national defense, and other fields, the importance of thermal control technology is becoming more and more prominent. As a high-performance thermal control material, aluminum nitride will be used more and more widely. In addition, with the continuous development of new energy technologies, the application of aluminum nitride in thermal management will also have a broader prospect.
Feel free to inquiry about the latest aluminum nitride price if you would like to buy aluminum nitride Powder in bulk.
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 boride powder, nitride powder, graphite powder, sulfide powder, 3D printing powder, etc.
If you are looking for high-quality aluminum nitride powder, please feel free to contact us and send an inquiry.
