Carbon Nanotube Array Thermal Interfaces for High-Temperature Silicon Carbide Devices

Carbon nanotube array thermal interfaces for high-temperature silicon carbide devices

Multiwalled carbon nanotube (MWCNT) arrays have been directly synthesized from templated Fe2O3 nanoparticles on the C-face of 4H-SiC substrates by microwave plasma chemical vapor deposition (MPCVD), and the room-temperature thermal resistances of SiC-MWCNT-Ag interfaces at 69–345 kPa as well as the thermal resistances of SiCMWCNT-Ag interfaces up to 250 C (at 69 kPa) have been measured using a ...

Effects of Growth Temperature on Carbon Nanotube Array Thermal Interfaces

Development of Silicon Carbide Semiconductor Devices for High Temperature Applications

The semiconducting properties of electronic grade silicon carbide (SiC) crystals, such as its wide energy bandgap, make it particularly attractive for high temperature applications. Applications for high temperature electronic devices include instrumentation for engines under development, engine control and condition monitoring systems, and power conditioning and control systems for space platf...

Photoacoustic characterization of carbon nanotube array thermal interfaces

This work describes an experimental study of thermal conductance across multiwalled carbon nanotube CNT array interfaces, one sided Si-CNT-Ag and two sided Si-CNT-CNT-Cu , using a photoacoustic technique PA . Well-anchored, dense, and vertically oriented multiwalled CNT arrays have been directly synthesized on Si wafers and pure Cu sheets using plasma-enhanced chemical vapor deposition. With th...

Contact mechanics and thermal conductance of carbon nanotube array interfaces

A model is developed in this work to predict the thermal contact resistance of carbon nanotube (CNT) array interfaces with CNT arrays synthesized directly on substrate surfaces. An analytical model for contact mechanics is first developed in conjunction with prior data from load–displacement experiments to predict the real contact area established in CNT array interfaces as a function of applie...