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The results of research devoted to formation of ordered arrays of particles during melting process of tin films on amorphous carbon substrate are given in the present work. Using scanning electron microscopy the histograms of particle size distribution are constructed for films of different mass thickness. The size dependences of the most probable radius of particles, which are formed during the melting process, and the half-width values of the corresponding histograms are obtained as well. The excess energy, which provides a decomposition of the initially continuous film into separate islands, is estimated and its size dependence is built. As shown, the melting process of films, which are condensed in island structures, provides larger filling coefficients in comparison with the melting process of initially continuous films.

The measured data of studying the temperature dependence of wetting angles of amorphous carbon films by island tin and indium Ž . condensates are presented in the broad temperature range 350-850 K encompassing the range of the supercooled state of metals together with the size dependence of wetting in the SnrC at 400 K. Considerable decrease of the wetting angle is observed with the liquid metal supercooling increasing, the fact being probably associated with the decrease of the interphase energy of the drop-substrate Ž . boundary. The size effect is observed for the supercooled tin microdrops DT s 105 K with the radii R -30 nm manifesting itself in the improvement of wetting with the decrease of the microdrop size. q 1998 Elsevier Science S.A. All rights reserved.