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Special customization Aluminum nitride ceramic Thermal insulation resistive

Ceramic material: aluminium nitride ceramic
Processing precision: ±0.001mm
Product characteristics: wear-resistant, high strength, high toughness
Customised processing: according to drawings and samples.
  • 07019

Aluminum nitride (AlN) 

Aluminium nitride (AlN) ceramics have high thermal conductivity, high resistance, low dielectric loss, low expansion and good mechanical properties, and can be used as high-performance thermal conductive substrates and ceramic packaging materials.

The rapid development of China's aerospace industry has prompted the development of ultra-large-scale integrated circuits and electronic devices for spacecraft in the direction of high-density, high-frequency, high-power, high-reliability, miniaturisation and multi-functionality. The heat flow density of the devices has increased, and the heat dissipation problem has gradually come to the fore. Heat dissipation material is the key to affect the device heat transfer performance and reliability. Therefore, high thermal conductivity electrical insulating materials have become a breakthrough in the highly integrated and miniaturised electronic systems, in which electronic ceramics have become an important direction to solve the heat dissipation problem. Among the traditional electronic ceramic materials, Al2O3 ceramics have low thermal conductivity and are limited to low and medium power applications, and their coefficients of linear expansion are not exactly matched with Si. High purity BeO ceramics have outstanding thermal conductivity at room temperature, but they are highly toxic and costly to prepare. AlN ceramics are characterised by high thermal conductivity, high electrical resistance, low dielectric loss, low expansion, excellent thermal shock resistance and good mechanical properties, and can be used as a new generation of ideal "high-performance", "structurally-integrated" thermal conductive insulators. It can be used as a new generation of ideal "high-performance", "structure-integrated" thermally conductive insulating materials.

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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