Carbon Nanotubes as Highly Conductive Nano-Fillers in Metallic Matrices

Edtmaier, Christian; Janhsen, T.; Hula, R.C.; Pambaguian, Laurent; Wulz, H. G.; Forero, Stefan; Hepp, F.

doi:10.4028/3-908454-01-8.131

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Composite Thermal Conductivity1

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2010

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“…), a reduction of 35% from peak value was observed. These low composite values are comparable to other previously studied copper-alloy/CNF composites, where the resultant composite thermal conductivity lies below that of copper [13,14], which is expected in randomly arranged fibre composites containing highly anisotropic fibres [15].…”

Section: Composite Thermal Conductivitysupporting

confidence: 84%

Effect of titanium on copper–titanium/carbon nanofibre composite materials

Lloyd

Neubauer

Bárcena

et al. 2010

Composites Science and Technology

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Copper/carbon nanofibre composites containing titanium varying from 0.3wt% to 5wt% were made, and their thermal conductivities measured using the laser flash technique. The measured thermal conductivities were much lower than predicted. The difference between measured and predicted values has often been attributed to limited heat flow across the interface. A study has been made of the composite microstructure using x-ray diffraction, transmission electron microscopy and Raman spectroscopy. It is shown in these materials, that the low composite thermal conductivity arises primarily because the highly graphitic carbon nanofibre structure transforming to amorphous carbon during the fabrication process.

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Section: Composite Thermal Conductivitysupporting

confidence: 84%