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The multilayer melting transition in methane adsorbed on graphite

Pettersen, M. S. and Lysek, Mark J. and Goodstein, D. L. (1986) The multilayer melting transition in methane adsorbed on graphite. Surface Science, 175 (1). pp. 141-156. ISSN 0039-6028. doi:10.1016/0039-6028(86)90088-9.

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High resolution heat capacity measurements of multilayer methane adsorbed on graphite are presented and analyzed. The evidence indicates the presence of two wetting transitions: a first-order dewetting transition at T_w = 90.48 K, and a continuous wetting transition at the triple point, T_t = 90.66 K. This behavior is to be expected in connection with the melting transition in any system where both solid and liquid wet the surface. Heat capacity measurements can provide a valuable diagnostic tool for the wetting behavior of films too thick to be investigated by other means. In the thin film limit, we find that the latent heat of melting vanishes at about 4 layers.

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Additional Information:© 1986 Elsevier. Received 24 January 1986; accepted for publication 3 April 1986.
Issue or Number:1
Record Number:CaltechAUTHORS:20151214-145755172
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:62900
Deposited By: Ruth Sustaita
Deposited On:14 Dec 2015 23:43
Last Modified:10 Nov 2021 23:08

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