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High Thermal Conductivity AIN Aluminium Nitride Tubes / Sleeves / Bushings / Tubes / Rods / Rings

Ceramic material: aluminium nitride ceramic
Processing precision: ±0.001mm
Product characteristics: wear-resistant, high strength, high toughness
Customised processing: according to drawings and samples.
  • 07020

Aluminum nitride (AlN) 

Aluminium nitride is a material of interest in the electronics field due to its excellent thermal conductivity and thermal expansion coefficient matching that of silicon.

Due to the small atomic weights of the two elements that make up the AlN molecule, the relatively simple crystal structure, good simple harmonicity, the formation of Al-N bond lengths are short, the bond energy is large, and the resonance of covalent bonding is conducive to the mechanism of phonon heat transfer, so that the AlN material has excellent thermal conductivity than the general non-metallic materials, in addition to the AlN has a high melting point, high hardness, and high thermal conductivity, and a good dielectric properties.

Aluminium nitride ceramics have been widely used in many civil and military applications due to their excellent performance in various aspects. 5G era, new energy vehicle era, and the advent of the artificial intelligence era will make aluminium nitride ceramics more in demand.

Aluminum Nitride Tube Applications

-Heat-resistant punching and heat exchange materials

-Heat-resistant materials

- Microwave attenuation materials

AlN ceramic materials have broad application prospects and broad potential markets in the electronic field, electric power, locomotive, aviation and aerospace, national defense and military industry, communication, and many industrial fields.

Properties of Aluminum Nitride (AlN)

  • High thermal conductivity

  • High electrical insulation capacity

  • Low thermal expansion

  • Good metalization capacity

Materail Properties  

Item Data Unit
Color Grey -
Density 3.30 g/cm3
Surface roughness Ra 0.01~0.7 um
Bending Strength 450 MPa
Moh's hardness 8 -
Thermal conductivity 180 25°C,W/(m·k)
Coefficient of Thermal Expansion 4 10-6/°C,100°C
Dielectric Constant 8.8 1MHz
Dielectric loss <3 1MHz,10-4
Electrical Resistivity >1014 25°C,Ω.cm
Dielectric strength 17 KV/mm

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