Jacob Pawlik
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25 Aug 12:39
Thermal conductivity of 2D nano-structured graphitic materials and their composites with epoxy resins
by Mulan Mu, Chaoying Wan and Tony McNally
The outstanding thermal conductivity ( λ ) of graphene and its derivatives offers a potential route
to enhance the thermal conductivity of epoxy resins. Key challenges still need to be overcome to
ensure effective dispersion and distribution of 2D graphitic fillers throughout the epoxy matrix. 2D
filler type, morphology, surface chemistry and dimensions are all important factors in determining
filler thermal conductivity and de facto the thermal conductivity of the composite material. To
achieve significant enhancement in the thermal conductivity of epoxy composites, different
strategies are required to minimise phonon scattering at the interface between the nano-filler and
epoxy matrix, including chemical functionalisation of the filler surfaces such that interactions
between filler and matrix are promoted and interfacial thermal resistance (ITR) reduced. The
combination of graphitic fillers with dimensions on different length scales can potentially form an
intercon...
18 Aug 19:20
Giant Valley-Isospin Conductance Oscillations in Ballistic Graphene
by Clevin Handschin, Péter Makk, Peter Rickhaus, Romain Maurand, Kenji Watanabe, Takashi Taniguchi, Klaus Richter, Ming-Hao Liu and Christian Schönenberger
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