Aluminum Nitride Crucible Description
Aluminum Nitride (AlN) crucibles are ceramic components. They exhibit a measured thermal conductivity of ≥170 W/m·K, a coefficient of thermal expansion of 4.6×10⁻⁶/°C, and a density of 3.26 g/cm³. Their flexural strength ranges between 365 MPa and 420 MPa, while compressive strength is 310–320 MPa. Electrical insulation is provided through a volume resistivity of ≥10¹³ Ω·cm.
AlN ceramics are used in the microelectronics sector. They dissipate heat and provide electrical insulation in substrates, IC packaging, and LED assembly. They are employed in high-temperature processes such as metal melting, semiconductor fabrication, and vacuum applications.
The material is a covalently bonded compound with a hexagonal crystal structure. It is applied in settings that demand precise thermal management and stable mechanical performance.
Aluminum Nitride Crucible Applications
· Semiconductors: Used in semiconductor fabrication for heat dissipation.
· Microelectronics Packaging: Employed for packaging ICs, LEDs, and power devices because its thermal conductivity matches that of silicon.
· High-Temperature Processing: Used in the production of ceramics and metal alloys at elevated temperatures.
· LED Technology: Applied for thermal management during LED assembly.
· Metal Melting & Casting: Employed in melting metals such as titanium and steel; heat is distributed uniformly.
· Solar Cell Manufacturing: Used in solar cell production to manage heat during processing.
· Laser Systems: Integrated in high-power lasers to address thermal loads.
· Nuclear Industry: Operates stably at high temperatures during nuclear processes.
· High-Temperature Furnaces: Used for sintering and material processing in furnaces.
· Chemical Processing: Employed in chemical reactors and furnaces to provide heat resistance and minimise contamination.
Aluminum Nitride Crucible Packaging
The products are packaged in customised cartons of various sizes according to the material dimensions. Small items are placed in PP boxes, while larger items are secured in customised wooden crates. Appropriate cushioning is applied, thereby protecting items during transportation.
Packaging: Carton, Wooden box, Paper barrel, Iron barrel, or Customised.
Please review the packaging details provided for your reference.
Aluminum Nitride Crucible FAQs
Q1. Can AlN ceramic crucibles be customised?
Yes, AlN ceramic crucibles can be customised. Please provide detailed product drawings to specify design requirements.
Q2. What are the main features of AlN ceramic crucibles?
The thermal conductivity is at least 170 W/m·K.
The flexural strength ranges from 365 MPa to 420 MPa.
The compressive strength is between 310 MPa and 320 MPa.
They are resistant to thermal shock.
The maximum operating temperature is 1800°C.
The electrical insulation is provided by a volume resistivity of ≥10¹³ Ω·cm.
Q3. What are the typical applications of AlN ceramic crucibles?
They are used in semiconductor fabrication, metal melting and casting, high-temperature processing, and in vacuum or inert atmosphere environments.
Comparison Table
|
Property
|
AlN Crucible
|
Al₂O₃ Crucible
|
ZrO₂ Crucible
|
|
Thermal Conductivity
|
≥170 W/m·K
|
20-30 W/m·K
|
2-3 W/m·K
|
|
Thermal Expansion
|
4.6 × 10⁻⁶ /°C
|
8.4 × 10⁻⁶ /°C
|
10.5 × 10⁻⁶ /°C
|
|
Density
|
3.26 g/cm³
|
3.95 g/cm³
|
5.68 g/cm³
|
|
Maximum Operating Temp
|
1800°C
|
1600°C
|
2200°C
|
|
Dielectric Strength
|
17 kV/mm
|
15-18 kV/mm
|
18 kV/mm
|
|
Dielectric Constant (1 MHz)
|
9
|
9-10
|
25-30
|
|
Dielectric Loss (1 MHz)
|
3.8 × 10⁻⁴
|
10⁻³
|
10⁻³
|
|
Flexural Strength
|
365-420 MPa
|
200-300 MPa
|
500-700 MPa
|
|
Compressive Strength
|
310-320 MPa
|
250-300 MPa
|
600-700 MPa
|
|
Electrical Resistivity
|
≥10¹³ Ω·cm
|
≥10¹³ Ω·cm
|
≥10¹³ Ω·cm
|
|
Application
|
Microelectronics, LED packaging, semiconductor devices, high-temperature processes
|
High-temperature applications, laboratory use, furnace linings
|
High-temperature furnaces, metal melting, ceramics
|
Specification
|
Material
|
Aluminium Nitride
|
|
Colour
|
Light grey
|
|
Capacity
|
Customised
|
|
Density
|
≥3.3 g/cm3
|
|
Mohs Hardness
|
8
|
|
Bending Strength
|
365-420 MPa
|
|
Compressive Strength
|
310-320 MPa
|
|
Thermal Conductivity
|
≥170 W/m·K
|
|
Thermal Expansion Coefficient
|
4.6 10⁻⁶/°C
|
|
Max Operating Temperature
|
1 800 ℃
|
|
Volume Resistivity
|
10¹³Ω·cm
|
|
Dielectric Constant
|
9
|
|
Dielectric Strength
|
17 kV/mm
|
*The above product information is based on theoretical data. For specific requirements and detailed enquiries, please contact us.
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