Based on the low coefficient of thermal expansion and the highest thermal conductivity at room temperature, the single crystal CVD diamond has two main thermal applications: 1) centralized heat dissipation of large areas, such as TR components, microwave power components and high power laser components; 2) point heat dissipation for thermal emission units, such as Gallium nitride(GaN) devices.
|Thermal properties||Thermal conductivity||>1900 Wm-1K-1||Heat sink, heat exchanger,
heat sink (applied to high-power devices)
|Coefficient of thermal expansion||193 K||0.4×10-6/K|
|Isobaric molar heat capacity||1800 K||24.7J/(mol·K)|