Overview of Aluminum Nitride Radiator Ring Plate
The Aluminum Nitride Heat Sink Ring Plate is a heat dissipation component made from aluminum nitride ceramic as its primary material. With high thermal conductivity, it can quickly conduct heat from the heat source to the outside world, effectively cooling down electronic equipment. The aluminum nitride heat sink ring offers excellent electrical insulation, preventing short circuits and ensuring equipment safety. Additionally, the ring plate exhibits characteristics such as high mechanical strength, strong chemical stability, and a low thermal expansion coefficient. It can maintain stable performance in complex environments and different temperature conditions and is widely used in electronic information and other high-tech fields.
Aluminum Nitride Radiator Ring Plate
Characteristics of Aluminum Nitride Radiator Ring Plate
Efficient heat dissipation: With ultra-high thermal conductivity, it can quickly conduct heat from the heat source to the outside world, and the thermal conductivity efficiency is significantly improved compared to traditional heat dissipation materials.
Safety Protection: With excellent electrical insulation properties, it can build a reliable insulation barrier while conducting heat efficiently, eliminating potential safety hazards caused by short circuits and leakage in the heat dissipation process and providing solid safety protection for precision electronic components, which is crucial for semiconductors, telecommunication equipment, and other fields with insulation requirements.
Reliable structure: extremely high mechanical strength, which can withstand mechanical vibration, external impact, etc., maintaining structural integrity and preventing deformation or rupture, ensuring that the heat dissipation function remains unaffected.
Strong corrosion resistance: excellent chemical stability ensures that it remains unaffected by humid environments, acidic and alkaline conditions, or long-term exposure to air, preventing it from being easily corroded by chemical reactions and allowing for stable performance over an extended period.
Low coefficient of expansion: low coefficient of thermal expansion, minimal change in size at different temperatures, to avoid damage to equipment due to thermal expansion and contraction of the stress generated by the equipment, to further protect the reliability and stability of equipment operation, so in the aerospace, new energy vehicles and other cutting-edge field of extremely stringent requirements for thermal materials have also been widely used in depth.
Aluminum nitride radiator ring plate specification table
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Application areas of aluminum nitride radiator ring plate
Electronic communication field
5G base station: The 5G base station equipment generates a significant amount of heat when in operation. An aluminum nitride annular plate can quickly dissipate heat, ensuring the stable operation of the base station and improving the quality of signal transmission. Server data center: High-density chips are prone to serious heat buildup during continuous operation. The highly efficient heat dissipation capability of the toroidal plate can prevent the equipment from overheating, thereby avoiding data processing delays or failures.
Aerospace
Extreme environmental adaptability: aircraft electronic systems work in extreme temperature environments; aluminum nitride toroidal plate not only has a strong heat dissipation ability, and with a low coefficient of expansion and high mechanical strength, it can be used to protect the stability of equipment performance in severe vibration, high and low-temperature changes to ensure the normal operation of navigation, communication and other systems.
New Energy Vehicle Industry
Battery and motor control: Battery management systems and motor controllers have stringent requirements for heat dissipation. Aluminum nitride toroidal plates can effectively control battery temperature, preventing overheating and potential safety hazards while improving battery life and range and helping to optimize the performance of new energy vehicles.
Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, ceramic products, 3D printing powder, etc.
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 Ceramic Products please feel free to contact us or click on the needed products to send an inquiry.
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5 FAQs about Aluminum Nitride Radiator Ring Plates
Q1: What are the difficulties in processing aluminum nitride radiator ring plates?
Material brittleness: Aluminum nitride has high hardness (HV1-1000) and low fracture toughness (3-4 MPa・m¹/²), which is prone to micro-cracks during processing and requires the use of ultra-precision processing technologies such as chemical mechanical polishing (CMP) and magnetorheological polishing (MRF), which can reduce the surface roughness to 0.3-0.5 μm to avoid the loss of thermal conductivity.
Dimensional accuracy: The ring structure must ensure a flatness of ≤2‰ and a thickness tolerance of ±0.01 mm, typically achieved through a combination of laser cutting and the electrolytic online dressing grinding (ELID) process.
Interface bonding: Bonding with metal substrates (e.g., copper) requires active metal brazing (AMB). By adding titanium, nickel, and other elements to improve wettability, the interface thermal resistance can be reduced to 0.5 K · cm²/W or less.
Q2: How to evaluate the quality of an Aluminum Nitride heat sink?
Thermal performance test: Measure the thermal diffusivity using the laser flash method and calculate the thermal conductivity by combining density and specific heat capacity, with an error controlled within ±5%.
Structural integrity testing: Crystalline phase purity is analyzed by X-ray diffraction (XRD), and ultrasonic scanning detects internal porosity (<1% required).
Reliability verification: Thermal cycling test (>1000 cycles) from - 55°C to + 175°C for cracks or delamination.
Q3: What is the cost of an Aluminum Nitride Radiator Ring Plate?
Material cost: 99% pure Aluminum Nitride powder costs approximately $350-$ 500/kg, which is 5-10 times more expensive than Alumina but only 1/100th the cost of Diamond.
Processing Costs: Ultra-precision polishing and metallization account for 40-50% of the total cost, with customized products (e.g., shaped ring plates) costing 30-50% more than standard products.
Cost-performance analysis: In high-power density scenarios (e.g., server CPU cooling), the overall cost of the Aluminum Nitride solution is 20% lower than that of the Copper-based solution, taking into account insulation and maintenance costs.
Q4: What are the technical innovations of aluminum nitride heat sink?
Composite structure design: AlN/Cu gradient composites are prepared using the Reaction Infiltration Process (RIP), which increases the thermal conductivity to 100 W/(m · K) and reduces the thermal expansion coefficient mismatch stress.
Surface modification technology: Nano silver coating can reduce interfacial thermal resistance by 70%, making it suitable for low-thermal-resistance packaging of high-frequency devices.
3D printing applications: Selective laser sintering (SLS) technology enables the creation of complex runner designs, improving thermal efficiency by 40%.
Q5: What is the future development direction of aluminum nitride heat sink?
Cost optimization: The purity of domestically produced powder has been increased to 99.5%, and the price is expected to drop by 30% by 2025.
Function integration: an integrated micro-channel cooling structure with heat dissipation density exceeding 1000 W/cm².
Environmental trend: lead-free brazing and recyclable design have become mainstream, complying with the EU RoHS directive.
