Structural rigidity and thermal conductance of nanostructured carbon: nanotubes and foams David Tománek Physics-Astronomy Department Michigan State University.

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Presentation transcript:

Structural rigidity and thermal conductance of nanostructured carbon: nanotubes and foams David Tománek Physics-Astronomy Department Michigan State University

Savas Berber,Michigan State University Young-Kyun Kwon, U.C. Berkeley Susumu Saito,Tokyo Institute of Technology Koichiro Umemoto,Tokyo Institute of Technology Financial Support: Office of Naval Research DARPA NASA Acknowledgements

Is nanostructured carbon foam the ultimate structural and thermal material?

Morphology of Hybrid Graphitic Foam Relationship to graphite Graphite Graphene monolayer New Hybrid in-between Diamond and Graphite refold …

Folding Process

Hybrid Graphitic Foam Present study: Optimized structure Elastic properties Electronic structure Terrace size   : graphite Terrace size  0: diamond

Optimized Structure

Elastic Properties

Electronic Structure Brillouin Zone Band Structure Density of States Graphitic foam is metallic: N(E F )=1.0 states/eV/spin