AlN High-temperature High-thermal Conductivity High-performance Aluminum Nitride Ceramic Tube

Introduction to Aluminum Nitride Tubes

Aluminum Nitride Tubes are tubular ceramic parts made of Aluminum Nitride (AlN) material, which are manufactured by powder molding and high-temperature sintering processes. Aluminum nitride tubes are widely used in high-power electronics, semiconductor equipment and high-temperature industrial applications due to their excellent thermal conductivity, electrical insulation and mechanical properties.

Features of Aluminum Nitride Tubes

High thermal conductivity: high thermal conductivity (about 170-200 W/m-K), which can effectively conduct heat and is suitable for heat dissipation of high-power devices.

Excellent electrical insulation: high resistivity, suitable for use as an insulating component in electronic devices.

Low coefficient of thermal expansion: close to the coefficient of thermal expansion of semiconductor materials such as silicon, reducing thermal stress.

High mechanical strength: high hardness and flexural strength, able to withstand mechanical stress.

High-Temperature Resistance: Can work stably in high-temperature environments, suitable for high-temperature applications.

Chemical stability: exhibits good corrosion resistance to most chemicals.

Low dielectric constant and dielectric loss: suitable for high-frequency electronics applications.

Specifications of Aluminum Nitride Tubes

Property	Typical Specification
Material Composition	AlN (Aluminum Nitride)
Thermal Conductivity	170-220 W/m·K
Coefficient of Thermal Expansion	~4.5-5.0 ppm/°C (similar to silicon)
Dielectric Strength	>20 kV/mm
Dielectric Constant (1 MHz)	~8.4 – 9.6
Volume Resistivity	>10^14 Ω·cm at 25°C
Mechanical Strength (Bending)	~350-450 MPa
Hardness (Vickers)	~12-14 GPa
Density	~3.26 g/cm³
Porosity	<1%
Operating Temperature Range	-269°C to +1000°C
Chemical Stability	Excellent resistance to acids, alkalis, and molten metals
Surface Finish	Can be polished to optical quality or left with a machined finish
Inner Diameter (ID)	Customizable; typically ranges from a few millimeters to several centimeters
Outer Diameter (OD)	Customizable; typically ranges from a few millimeters to several centimeters
Length	Customizable; commonly available in lengths up to several meters
Purity	High purity options available (e.g., >99%)

Applications of Aluminum Nitride Tubes

Semiconductor manufacturing: Used in heater tubes, electrostatic suction cups and reactor liners for semiconductor equipment.

High-power electronics: used as heat sink tubes for LEDs, laser diodes and power modules.

Chemical equipment: used in high-temperature reactors and pipes in corrosive environments.

Communication equipment: used as heat sink tubes for high-frequency circuits in 5G communication equipment.

Automotive electronics: heat pipes for power modules in electric vehicles.

Aerospace: for heat dissipation and structural support of highly reliable electronic equipment.

New energy field: heat sink tubes for solar inverters and wind energy converters.

Company Profile

RBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high-quality chemicals and Nanomaterials.

The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.

If you are looking for high-quality Aluminum Nitride Tubes please feel free to contact us or click on the needed products to send an inquiry. 

Payment Term

T/T, Western Union, Paypal, Credit Card etc.

Packing and Storage

The product is in powder form and should be stored in a cool, ventilated place. Avoid inhalation when using it and keep away from open flames, heat sources, etc.

Shipment Term

By air, by sea, by express, as customers request.

FAQs of Aluminum Nitride Tubes

Question 1: What is the main component of aluminum nitride tubing? What are its properties?

Answer: Aluminum nitride tubes are mainly composed of aluminum nitride (AlN), which is a ceramic material. Aluminum nitride has high thermal conductivity, low dielectric constant, good electrical insulation and excellent chemical stability. In addition, it has a coefficient of thermal expansion similar to that of semiconductor materials such as silicon, so aluminum nitride tubes perform well in electronic packaging and other high-temperature applications.

Question 2: Why is the thermal conductivity of aluminum nitride tubes important?

Answer: High thermal conductivity enables Aluminum Nitride tubes to conduct heat quickly, effectively lowering the operating temperature of high-power electronic devices and improving device performance and reliability, making them particularly suitable for the heat dissipation needs of semiconductor devices and power modules.

Question 3: What is the application of Aluminum Nitride tubes in semiconductor manufacturing?

Answer: In semiconductor manufacturing, aluminum nitride tubes are used to make heater tubes, electrostatic suction cups, and reactor liners, which provide stable heating and adsorption performance due to their high-temperature resistance, high thermal conductivity, and electrical insulation.

Question 4: What is the significance of the low dielectric constant and dielectric loss of aluminum nitride tubes?

Answer: The low dielectric constant and dielectric loss make aluminum nitride tubes suitable for high-frequency electronics applications, reducing energy loss in signal transmission and improving the performance of communication equipment and high-frequency circuits.

Question 5: How does the chemical stability of aluminum nitride tubes affect their use in chemical equipment?

Answer: Aluminum nitride tubes show good corrosion resistance to acids, alkalis and most corrosive media, making them able to work stably for a long time in chemical equipment, and are suitable for piping in high-temperature reactors and corrosive environments.