Aluminum Nitride Sheet, Discs / Plates – High Thermal Conductivity Ceramic Substrates
Inquiry NowProduct Description
M-Kube offers premium Aluminum Nitride (AlN) discs and plates across Australia, designed for thermal management, electrical insulation, and high-frequency electronic applications.
With exceptional thermal conductivity, high strength, and superior dielectric performance, these AlN substrates are ideal for use in semiconductors, power electronics, and LED modules where efficient heat dissipation and electrical reliability are critical.
Key Features: Aluminum Nitride Sheets, Discs / Plates
- High thermal conductivity (up to 170 W/m·K) ensures superior heat spreading.
- Excellent electrical insulation with low dielectric loss.
- Low coefficient of thermal expansion (CTE) for outstanding dimensional stability.
- High mechanical strength and excellent resistance to wear and corrosion.
- Custom dimensions and thicknesses available upon request.
- Compatible with vacuum, inert, and oxidising atmospheres.
- Available with precision surface finishes — ground, lapped, or mirror-polished.
Technical Specifications
| Property Sort | Property Content | Unit | AIN |
| Basic Properties | Appearance/Color | – | Grey |
| Volume Density | g/cm3 | 3.3 | |
| Surface roughness | μm | 0.2∼0.75 | |
| Warping | Length % | ≤ 3 % | |
| Thermal Properties | Thermal Conductivity (20°C) | W/m.K | 170 |
| Thermal Expansivity (20°C∼400°C) |
x10-6/°C
|
4-5 | |
| Thermal Expansivity (400°C∼800°C) | 5-6 | ||
| Mechanical Properties | Flexural Strength | MPa | ≥ 350 |
| Electrical Properties | Dielectric Constant | 1 MHz | 8-9 |
| Dielectric Strength | kV/mm | ≥ 15 | |
| Volume resistivity | 20°C Ω.cm | ≥ 1014 | |
| With inert gas protection, the maximum temperature can reach 1800 – 1950 degrees | |||
| Under air conditions, the temperature can reach up to 1200 degrees | |||
| Under vacuum conditions, the maximum operating temperature is 1600 – 1800 degrees. | |||
Applications of Aluminum Nitride Sheets, Discs / Plates
- Semiconductor & LED Substrates
Used for heat dissipation in power devices, laser diodes, and integrated circuits. - Power Electronics
Ideal for IGBT, MOSFET, and rectifier module bases due to superior insulation and heat spreading. - RF & Microwave Systems
Provides stable dielectric properties for high-frequency signal transmission. - Laser & Optoelectronic Devices
Used in optical mounts, laser submounts, and diode assemblies.
Why Choose M-Kube
M-Kube delivers high-purity Aluminum Nitride plates and discs tailored to meet the toughest industrial and research requirements.
- Precision-engineered for thermal, electrical, and structural stability.
- Custom thicknesses and polished finishes for advanced applications.
- Reliable supply and quick delivery across Australia.
- Trusted by semiconductor, and research industries.
All M-Kube ceramic and refractory products are manufactured in ISO-certified facilities and tested in accordance with relevant ASTM standards.
This ensures every AlN component meets global benchmarks for material quality, consistency, and performance.
Buy Aluminum Nitride Discs & Plates in Australia – Request a Quote
Looking for custom Aluminum Nitride plates or discs for your thermal or electrical insulation needs?
M-Kube supplies precision AlN substrates designed to meet your application and dimensional requirements.
📞 Call +61-478-594-746
📧 Email info@mkube.com.au
👉 Contact M-Kube today to get a quote or discuss your Aluminum Nitride plate specifications.
Product FAQ's
Can Aluminum Nitride Plates be customized?
Yes. Many suppliers offer custom dimensions, thicknesses, and tolerances for Aluminum nitride plates to meet specific industrial or laboratory requirements. Custom fabrication ensures optimal performance for your application.
What factors affect Aluminum Nitride Plate Price?
Aluminum nitride plate price depends on size, thickness, material purity, and customization. Higher-grade plates or substrates with precise specifications may cost more but provide better thermal conductivity, reliability, and long-term durability.
How do I choose the right Aluminum Nitride Plate for my project?
Consider your application requirements such as thermal conductivity, electrical insulation, dimensions, and mechanical stability. Aluminum nitride plates can be custom-cut to exact specifications by suppliers to match your needs.
How can I ensure I am buying high-quality Aluminum Nitride Plates?
Purchase from certified Aluminum nitride substrate suppliers who provide material specifications, quality assurance, and technical guidance. High-quality plates ensure reliable thermal management and electrical insulation.
How do Aluminum Nitride Substrates differ from AlN plates or discs?
While AlN plates and discs are used for general structural or thermal applications, Aluminum nitride substrates are specifically engineered to support electronic circuits, dissipate heat efficiently, and provide electrical insulation for sensitive components.








