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Published April 28, 1986 | public
Journal Article

Observation of a first-order triple-point dewetting transition in methane adsorbed on graphite

Abstract

We report the results of high-resolution heat capacity measurements of multilayer methane adsorbed on graphite near the bulk triple point. These measurements indicate that the films studied, from 5 to 18 layers thick, undergo two wetting transitions in the process of melting. The first is a first-order dewetting transition at T_w ∼ 90.5 K, and the second is a continuous wetting transition at the triple point, T_t = 90.66 K. The melting transition in the film begins at T_w, and moves to lower temperatu for thinner films.

Additional Information

© 1986 Elsevier Science Publishers B.V. Received 31 January 1986; revised manuscript received 27 February 1986; accepted for publication 27 February 1986.

Additional details

Created:
August 19, 2023
Modified:
October 25, 2023