AlN-Aluminum Nitride Ceramic

AIN ceramics with excellent thermal conductivity (170-220 W/m·K)

Aluminum nitride (AlN) has high thermal conductivity and electrical insulation properties, is a perfect thermal match with silicon, and is a safe and non-toxic alternative to BeO. Suitable for high temperature applications

AIN Advantages

Free from beryllia’s toxicity concerns.
High plasma resistance and outstanding thermal shock performance.
Thermal conductivity ranges from 170-220 W/m·K.
Coefficient of thermal expansion closely matches silicon (Si).
Offers excellent electrical insulation and mechanical strength.
High bending strength and hardness, tolerating temperatures above 1000°C.
Chemically stable, with low dielectric constant and minimal loss.
Exceptional wear resistance for demanding applications.

AlN Applications

Semiconductor packaging substrate
Microwave device substrate
Laser diodes
IGBT modules
Antenna oscillators
Power electronics
High-frequency transformers
X-ray equipment
MEMS sensors
High-power electrical insulators
Water-cooled heatsinks
Laser components

Aluminum Nitride Material Properties

Mechanical Properties

Mechanical properties	Unit	AIN
Density	g/cm³	3.34
Vickers hardness	HV	1100
Bending strength	MPa	400
Compressive strength	MPa	2500
Toughness	MPa·m¹ᐟ²	3.5
Elastic modulus	GPa	310
Poisson’s ratio	——	0.22
Young’s modulus	GPa	330

Thermal Properties

Thermal performance	Unit	AIN
Thermal conductivity	W/（m・K）	179.2
Maximum service temperature	°C（carrying idler）	1350
Specific heat	J/(kg・K)	720
Thermal Shock	℃(Put into water)	350
CTE(30℃~300℃，ppm/℃)	1 × 10⁻⁶/°C	4.06
CTE(30℃~500℃，ppm/℃)	1 × 10⁻⁶/°C	4.85

Electrical Properties

Electrical characteristics	Unit	AIN
Dielectric constant	1MHz	7.4
Dielectric loss	1MHz	1.6 × 10⁻⁴
Breakdown voltage	kV/mm	18
Dielectric strength	kV/mm	≥20
Volume resistivity @ 25 ° C	Ω・cm	2.1 × 10¹⁶

Note: This value is for reference only and may vary slightly depending on the batch conditions.

Aluminum Nitride Machining

Aluminum nitride (AlN) is a high-performance technical ceramic known for its excellent thermal conductivity and electrical insulation properties. As a professional manufacturer of aluminum nitride ceramics, Jundro Ceramics is committed to providing ideal material solutions for a variety of high-precision equipment. With extensive experience in materials design, precision machining and application development, we are your best partner for aluminum nitride processing.

Need custom aluminum nitride ceramics? Contact us today to speak with our materials experts to create a solution that exceeds expectations!

Aluminum Nitride Prototype Machining

Our latest video records the process of CNC machining of aluminum nitride ceramics

Custom Prototype AIN Case

We specialize in precision machining of complex shaped aluminum nitride ceramics, capable of achieving high-precision machining to meet the needs of various complex designs.

Related Materials

Aluminum Nitride is undoubtedly one of the high-value materials that excels in semiconductor and electronic device applications. Of course, there are other high-performance materials such as Macor, Shapal Hi-M, Silicon Carbide, etc.

Shapal Hi-M

Shapal Hi M, also known as machinable aluminum nitride, has better performance than aluminum nitride and excellent additive properties

Macor Machinable Ceramic

Macor is a glass ceramic with zero porosity and zero gas release rate, which has the same processing ability as metal and can achieve ultra-high processing tolerances.

Frequently Asked Questions

What is AIN?

Aluminum Nitride (AIN) is a high-performance ceramic material known for its excellent thermal conductivity, electrical insulation properties, and mechanical strength. It is widely used in electronic and semiconductor applications, as well as in high-temperature and high-power devices. AIN is highly valued for its ability to dissipate heat effectively while maintaining electrical insulation, making it ideal for use in areas such as LED substrates, power electronics, and heat sinks. Additionally, it is resistant to corrosion and oxidation, ensuring durability in harsh environments.

Is Aluminum Nitride (AIN) toxic to humans？

Aluminum Nitride (AIN) is generally considered to be non-toxic under normal handling conditions. However, when it is subjected to high temperatures, particularly during processes like machining or sintering, AIN can release toxic fumes, such as nitrogen oxides (NOx) and other harmful compounds. These fumes can pose health risks if inhaled in significant quantities.

To minimize risks, it is important to follow safety guidelines, including wearing protective equipment (such as respirators) and ensuring proper ventilation in areas where AIN is being processed. In solid form, AIN is not considered hazardous to human health, but as with any industrial material, proper handling and precautions are essential to avoid exposure to potentially harmful dust or fumes.

Can Aluminum Nitride ceramics be machined or shaped

Yes, Aluminum Nitride ceramics are machinable, making them ideal for custom designs. However, they require specialized tools and techniques, such as diamond-coated blades, to achieve the precision needed for high-performance applications.

What industries use Aluminum Nitride ceramics?

Aluminum Nitride ceramics are widely used in industries such as electronics, semiconductor manufacturing, aerospace, automotive, and telecommunications, particularly for components requiring high thermal conductivity and electrical insulation.

How does Aluminum Nitride compare to other ceramics in terms of thermal conductivity?

Aluminum Nitride has one of the highest thermal conductivities among ceramics, making it ideal for heat management in electronic components. Compared to materials like alumina (Al2O3), AIN offers significantly better thermal performance.

What is the difference between Aluminum Nitride and Silicon Nitride ceramics?

While both are high-performance ceramics, Aluminum Nitride (AIN) is primarily known for its superior thermal conductivity, while Silicon Nitride (Si3N4) excels in mechanical strength and wear resistance. The choice between them depends on the specific application requirements.

What are the main uses of Aluminum Nitride (AIN)?

Aluminum Nitride (AIN) is widely used in high-performance applications due to its excellent thermal conductivity and electrical insulation properties. Common uses include LED substrates, power electronics, heat sinks, and components in high-temperature environments.