| CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES |
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Wetting of Liquid Iron in Carbon Nanotubes and on Graphene Sheets: A Molecular Dynamics Study |
| GAO Yu-Feng, YANG Yang, SUN De-Yan**
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Department of Physics, East China Normal University, Shanghai 200062
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GAO Yu-Feng, YANG Yang, SUN De-Yan 2011 Chin. Phys. Lett. 28 036102 |
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Abstract Using molecular dynamics simulations, we study the wetting of liquid iron in a carbon nanotube and on a graphene sheet. It is found that the contact angle of a droplet in a carbon nanotube increases linearly with the increase of wall curvature but is independent of the length of the filled liquid. The contact angle for a droplet on a graphene sheet decreases with the increasing droplet size. The line tension of a droplet on a graphene sheet is also obtained. Detailed studies show that liquid iron near the carbon walls exhibits the ordering tendencies in both the normal and tangential directions.
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| Keywords:
61.30.Hn
68.08.De
61.20.Ja
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Received: 22 November 2010
Published: 28 February 2011
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| PACS: |
61.30.Hn
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(Surface phenomena: alignment, anchoring, anchoring transitions, surface-induced layering, surface-induced ordering, wetting, prewetting transitions, and wetting transitions)
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68.08.De
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(Liquid-solid interface structure: measurements and simulations)
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61.20.Ja
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(Computer simulation of liquid structure)
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