Diamond–silicon carbide (Diamond/SiC) composite combines the high thermal conductivity of diamond with the structural stability and hardness of silicon carbide. Depending on composition and manufacturing route, it can be designed for efficient heat transfer, controlled thermal expansion and precision thermal-management components.
·Semiconductor Packaging & AI Computing: Heat spreaders and thermal-management components for high-power processors.
·Power Electronics: Thermal structures for SiC power devices, IGBT modules and power conversion systems.
·Laser & Optoelectronics: Heat spreaders for laser diodes and other high-power optical devices.
·Aerospace & Precision Engineering: Specialized thermal structures where conductivity, stiffness and dimensional stability matter.
2. Core Advantages
Efficient Heat Transfer: High conductivity can reduce thermal resistance in a properly designed component.
CTE Matching: Adjustable composition helps address thermal mismatch between materials.
Mechanical Stability: Diamond and SiC contribute stiffness and hardness.
Design Flexibility: Material composition, geometry and finishing can be evaluated against application needs.
3. Specifications
The following are preliminary engineering reference ranges, not guaranteed specifications for a qualified VeTek product grade. Final values must be confirmed with the manufacturer and product-specific test reports.
Parameter
Unit
Indicative Range
Diamond content
vol.%
30–70
Thermal conductivity (room temperature)
W/(m·K)
300–800*
Coefficient of thermal expansion (CTE)
ppm/K
1–5*
Density
g/cm³
2.9–3.4
Relative density
%
Typically >98 for dense grades
Flexural strength
MPa
300–540*
Elastic modulus
GPa
300–500*
Vickers hardness
GPa
16–24*
4. Available Product Forms
·Plates and substrates — flat thermal spreaders and packaging substrates.
·Discs and round components — circular heat spreaders and custom discs.
·Custom-machined parts — special geometries and precision-finished components, subject to capability review.
5. Customization Requirements
For evaluation or quotation, please provide available details:
·Drawings, dimensions and tolerances
·Target thermal conductivity and CTE
·Operating temperature and thermal cycling conditions
·Surface finish, metallization or bonding requirements
For inquiries about Silicon Carbide Coating, Tantalum Carbide Coating, Special Graphite or price list, please leave your email to us and we will be in touch within 24 hours.
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