Aluminum Nitride

Overview of Aluminum Nitride Ceramic Products

Aluminum nitride (AlN) ceramics represent a class of advanced engineering materials known for their exceptional thermal conductivity, low dielectric constant, and excellent electrical insulation properties. These ceramics are engineered to deliver superior performance in high-temperature and high-power applications where efficient heat dissipation is critical. Utilizing high-purity aluminum nitride as the base material, these products offer unparalleled reliability and durability across various industries. Whether used in electronics, aerospace, or automotive sectors, aluminum nitride ceramics set new standards for performance and efficiency.

Features of Aluminum Nitride Ceramic Products

1. High Thermal Conductivity: With thermal conductivity ranging from 170 to 220 W/m·K, AlN efficiently dissipates heat, making it ideal for high-temperature applications.
2. Low Coefficient of Thermal Expansion (CTE): Similar to silicon, this property ensures dimensional stability even under rapid temperature changes, reducing thermal stress.
3. Excellent Electrical Insulation: High volume resistivity (> 10¹⁶ Ω·cm at 25°C) and dielectric strength make AlN suitable for use in electrical insulation applications.
4. Chemical Inertness: Highly resistant to corrosion from acids, alkalis, and organic solvents, ensuring long-lasting performance in harsh environments.
5. Lightweight: With a density of approximately 3.26 g/cm³, AlN offers weight savings compared to many traditional ceramic materials.
6. Mechanical Strength: Good flexural strength and fracture toughness ensure robustness in demanding applications.
7. Low Dielectric Constant: A dielectric constant of ~8.4 at 1 MHz makes AlN suitable for high-frequency electronic devices.
8. Thermal Shock Resistance: Excellent resistance to thermal shock due to its low CTE and moderate thermal conductivity.

Specifications of Aluminum Nitride Ceramic Products

Property	Specification
Material Composition	High-purity aluminum nitride (AlN), often with dopants for specific applications
Density	3.26 g/cm³
Hardness (Mohs Scale)	~9
Hardness (Vickers)	~1400 - 1800 HV
Fracture Toughness	3.5 - 4.5 MPa·m^(1/2)
Compressive Strength	> 400 MPa
Tensile Strength	> 300 MPa
Flexural Strength	> 400 MPa
Elastic Modulus	310 - 330 GPa
Thermal Conductivity	170 - 220 W/m·K
Coefficient of Thermal Expansion (CTE)	4.5 - 4.8 × 10⁻⁶/°C
Maximum Service Temperature	Continuous up to 1200°C in air; higher in inert atmospheres
Thermal Shock Resistance	ΔT > 500°C (depending on thickness and shape)
Dielectric Strength	> 15 kV/mm
Volume Resistivity	> 10¹⁶ Ω·cm at 25°C
Surface Resistivity	> 10¹⁴ Ω/sq at 25°C
Dielectric Constant (εr)	~8.4 at 1 MHz
Loss Tangent (tan δ)	< 0.0002 at 1 MHz
Chemical Resistance	Excellent resistance to acids, alkalis, and organic solvents
Porosity	< 0.5%
Water Absorption	< 0.1%
Color Options	Natural white; customizable colors through pigmentation
Finish Options	Polished, honed, matte, textured
Environmental Impact	Recyclable, low environmental footprint

Applications of Aluminum Nitride Ceramic Products

• Electronics: Ideal for substrates, heat sinks, and power modules in high-power semiconductor devices, LEDs, and microwave components.
• Aerospace and Automotive Industries: Used in engine components, sensors, and electronic control units where high temperatures and mechanical stress are common.
• Telecommunications: Beneficial for RF filters, oscillators, and other high-frequency devices requiring stable electrical properties.
• Medical Devices: Suitable for components in medical imaging equipment and surgical instruments where biocompatibility and thermal management are critical.
• Energy Sector: Found in solar panels, battery systems, and power electronics, leveraging its thermal stability and electrical insulation.
• Chemical Processing: Used in pump components, valves, and other parts exposed to aggressive chemicals.

Company Introduction

Advanced Ceramics is committed to being the world's leading provider of ceramic material solutions. Since our inception in 2012, we have focused on the development, production and sales of high-performance ceramic products, providing our customers with innovative products and quality services. With a deep understanding of material science and advanced manufacturing technology, we have won wide recognition in a variety of fields, including electronics, machinery, construction, and medical care.

Our core competitiveness lies in continuous technological innovation and strict quality control. We have an R&D team of senior scientists and engineers who are constantly exploring the application potential of new materials to ensure that our products are always at the forefront of the industry. At the same time, we have established a perfect quality management system, from the selection of raw materials to the finished product factory, each link is strictly tested to ensure the high quality and consistency of our products.

Advanced Ceramics' product line covers a wide range of ceramic applications, including but not limited to: high-precision electronic ceramic components, wear-resistant mechanical parts, decorative building materials, and medical implants. We not only provide standard products, but also customize ceramic products with special specifications and functions according to customers' needs. In addition, we actively promote the concept of green environmental protection, all production processes comply with international environmental standards, and strive to minimize the impact on the environment.

For more information, please feel free to contact us.(nanotrun@yahoo.com)

Payment Methods

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

Shipment Methods

By sea, by air, by express as soon as possible once payment receipt.

5 FAQs of Aluminum Nitride Ceramic Products

1. Q: What makes aluminum nitride ceramics so thermally conductive? A: Aluminum nitride's unique crystal structure allows for efficient phonon transport, leading to high thermal conductivity while maintaining low thermal expansion.
2. Q: Can aluminum nitride ceramics be machined after sintering? A: While aluminum nitride is relatively hard, it can be machined using diamond tools. However, machining should be done by professionals familiar with ceramic machining techniques to avoid damage.
3. Q: How does aluminum nitride compare to traditional ceramics in terms of thermal shock resistance? A: Aluminum nitride has superior thermal shock resistance compared to many traditional ceramics, thanks to its low coefficient of thermal expansion and good thermal conductivity.
4. Q: Are aluminum nitride ceramics suitable for high-temperature applications? A: Yes, aluminum nitride can withstand continuous service temperatures up to 1200°C in air and higher in inert atmospheres, making it ideal for high-temperature environments.
5. Q: What maintenance do aluminum nitride ceramic surfaces require? A: Aluminum nitride ceramics are easy to maintain; regular cleaning with mild soap and water is usually sufficient. For tougher stains, non-abrasive cleaners can be used without damaging the surface.