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Aluminum nitride ceramic used for heat dissipating parts and corrosion resistant parts

Aluminum Nitride

Aluminum nitride ceramic used for heat dissipating parts and corrosion resistant parts

Main Characteristics: High Thermal Conductivity,Excellent Thermal Shocking Resistance,Excellent resistance to plasma erosion.

Main Applications: Heat Dissipating Parts,corrosion resistant parts.

Aluminum nitride (AlN) is a material with high thermal conductivity and high electrical insulation, and is widely used as a component of semiconductor manufacturing devices because its thermal conductivity is close to SI.

Aluminum nitride ceramic is a kind of ceramic material with aluminum nitride (AlN) as the main crystal, which has excellent properties and wide application fields. The advantages of aluminum nitride ceramics and their applications in different fields will be described in detail below.

    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


    As a kind of high performance material, aluminum nitride ceramics has become one of the important directions of future scientific and technological development due to its excellent performance and wide application fields. With the continuous progress and innovation of science and technology, aluminum nitride ceramics will be applied and developed in more fields.

    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