Materials
Aluminum nitride ceramic used for heat dissipating parts and corrosion resistant parts
Advantages Of Aluminum Nitride Ceramics
1. High thermal conductivity
Aluminum nitride ceramics have high thermal conductivity, and their thermal conductivity is as high as 220 ~
240W/m·K, which is 2 ~ 3 times that of silicate ceramics. This high thermal conductivity can effectively solve
the problem of heat dissipation of electronic equipment, so it is widely used in the electronics industry.
2. High insulation
Aluminum nitride ceramic is an excellent insulating material with high resistivity and dielectric constant.
This means that it can effectively isolate circuit elements and prevent circuit short circuits and overheating.
3. High corrosion resistance
Aluminum nitride ceramics have good corrosion resistance to most acids, bases and organic solvents. This makes
it an ideal choice in the chemical and pharmaceutical industries.
4. High mechanical strength
Aluminum nitride ceramics have high mechanical strength, and their bending strength and fracture toughness are
800MPa and 10-12mpa ·m1/2, respectively. This high strength and high hardness make it widely used in cutting
tools, wear-resistant parts fields.
Application Of Aluminum Nitride Ceramics
1. Electronics industry
In the electronics industry, aluminum nitride ceramics are mainly used to manufacture high power and high
frequency electronic devices. Due to its high thermal conductivity and excellent insulation performance, it
effectively solves the problem of heat dissipation of electronic equipment, and also guarantees the high
reliability of electronic equipment. In addition, aluminum nitride ceramics can also be used to manufacture
microwave devices and millimeter wave devices, improving the performance and stability of communication
equipment.
2. Automobile industry
In the automotive industry, aluminum nitride ceramics are mainly used to manufacture engine components,
cylinder liners and brake pads. Due to its high corrosion resistance and high mechanical strength, it can
maintain good performance in high temperatures and harsh environments for a long time. In addition, aluminum
nitride ceramics can also be used to manufacture gas sensors to detect harmful components in automobile
exhaust and provide a basis for engine optimization.
3. Optical field
In the field of optics, aluminum nitride ceramics have high thermal conductivity and excellent thermal
stability, so they are widely used in the manufacture of high performance lasers, optical films and optical
fiber and other key optical components. In addition, aluminum nitride ceramics can also be used to
manufacture precision instruments such as spectrometers, high temperature sensors and infrared detectors,
improving the accuracy and reliability of optical measurements.
4. Semiconductor field
The heating plate on the semiconductor equipment uses the characteristics of high thermal conductivity,
acid and alkali resistance and wear resistance of aluminum nitride ceramics. However, the aluminum nitride
heating plate is still in the research and development stage in China, but it is an indispensable part in
chip manufacturing
| Density | g/cm3 | 3.34 |
| Thermal conductivity | W/m*k(R.T.) | 170 |
| Coefficient of thermal expansion | x10-6/ ℃ (R.T.-400℃) | 4.6 |
| Dielectric strength | KV/mm (R.T.) | 20 |
| Volume resistivity | Ω•cm (R.T.) | 1014 |
| Dielectric constant | 1MHz (R.T.) | 9.0 |
| Bending strength | MPa (R.T.) | 450 |