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Temperature dependence of the electrical conductivity of vapor grown carbon nan...
Cardoso, P.; Silva, J.; Agostinho Moreira, J.; Klosterman, D.; van Hattum, F.W.J.; Simões, Ricardo; Lanceros-Mendez, S.The influence of the dispersion of vapor grown carbon nanofibers (VGCNF) on the electrical properties of VGCNF/epoxy composites has been studied. A homogeneous dispersion of the VGCNF does not imply better electrical properties. The presence of well distributed clusters appears to be a key factor for increasing composite conductivity. It is also shown that the main conduction mechanism has an ionic nature for c...
The role of disorder on the AC and DC electrical conductivity of vapour grown c...
Cardoso, P.; Silva, J.; Klosterman, D.; Covas, J.A.; van Hattum, F.W.J.; Simões, RicardoFour dispersion methods were used for the preparation of vapour grown carbon nanofibre (VGCNF)/epoxy composites. It is shown that each method induces certain levels of VGCNF dispersion and distribution within the matrix, and that these have a strong influence on the composite electrical properties. A homogenous VGCNF dispersion does not necessarily imply higher electrical conductivity. In fact, it is concluded ...
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