Product Description
Diamond Composite Materials: The Ultimate Solution for High-Performance Thermal Management
Revolutionizing Heat Dissipation with Diamond-Metal Composites
By integrating synthetic diamond particles into high-thermal-conductivity metal matrices (Ag, Cu, Al) through advanced composite manufacturing, diamond/metal composites achieve an unprecedented combination of ultra-high thermal conductivity and low thermal expansion, making them the next-generation material for high-power electronic packaging and thermal management.
Diamond-Copper (D/Cu) Composite: The Thermal Performance Benchmark
Material Structure
Diamond-Copper Composite (D/Cu) is a matrix composite of synthetic diamond powder and copper alloy. Utilizing premium lab-grown diamonds with intrinsic thermal conductivity of 1,000 W/m·K and near-zero thermal expansion, this material achieves perfect interfacial metallurgical bonding under optimized processing, delivering exceptional thermal and mechanical properties.
Key Advantages
- Unmatched Thermal Performance: Thermal Conductivity: 500-800 W/m·K (adjustable based on diamond-to-copper ratio); Low CTE: 4-8 ppm/°C, precisely matching semiconductor materials (e.g., Si, GaN, SiC) to minimize thermal stress.
- Design Flexibility: Adjustable diamond content (40%-70%) to balance thermal conductivity and CTE for specific applications.
- Surface Engineering: Compatible with Ni/Au plating for hermetic sealing, oxidation resistance, and solder ability.
- Weight Reduction: Density 5.2-6.0 g/cm³, 30% lighter than traditional tungsten-copper (W/Cu) heat sinks.
Diamond-Aluminum (D/Al) Composite: Lightweight Alternative
Material Profile
Similar to D/Cu but with aluminum as the matrix, the Diamond-Aluminum Composite (D/Al) offers even greater weight savings while maintaining competitive thermal performance:
- Thermal Conductivity: 400-600 W/m·K
- CTE: 6-10 ppm/°C
- Density: 3.0-3.5 g/cm³, 40% lighter than D/Cu, ideal for aerospace and portable electronics.
Why Choose D/Al?
Optimized for applications where lightweight design is critical without compromising thermal management efficiency.
Product Parameters
| Property |
Diamond-Copper (D/Cu) |
Diamond-Aluminum (D/Al) |
| Thermal Conductivity |
500-800 W/m·K |
400-600 W/m·K |
| CTE |
4-8 ppm/°C |
6-10 ppm/°C |
| Density |
5.2-6.0 g/cm³ |
3.0-3.5 g/cm³ (lightweight champion) |
| Ideal Use Cases |
High-power lasers, EV power modules |
UAVs, satellites, 5G RF devices |
Applications: Where Diamond Composites Excel
- Power Electronics: IGBT modules, motor controllers, and SiC/GaN device packaging
- Aerospace & Defense: Radar systems, avionics cooling, hypersonic vehicle thermal shields
- Optoelectronics: Laser diodes, LED arrays, fiber-optic transceivers
- Consumer Tech: High-performance CPUs, gaming GPUs, and ultra-thin laptop heat spreaders
Technical Superiority
- Precision Interface Bonding: Advanced vacuum hot-pressing ensures robust diamond-metal interfaces for minimal thermal resistance.
- Customizable Formulation: Fine-tune diamond size (50-200 μm), volume fraction, and matrix alloys (Cu, Al, Ag) for mission-specific requirements.
- Reliability: Stable performance under extreme conditions (-200°C to +500°C), withstanding thermal cycling and mechanical shock.
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