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oai:recercat.cat:2445/187262025-11-21T05:48:10Zcom_2072_1057col_2072_478823col_2072_478917

00925njm 22002777a 4500 dc Tóth-Katona, T. author Börzsönyi, T. author Váradi, Z. author Szabon, J. author Buka, Agnes author González Cinca, Ricard author Ramírez Piscina, Laureano author Casademunt i Viader, Jaume author Hernández Machado, Aurora author 2011-07-07T12:51:24Z 2011-07-07T12:51:24Z 1996 Remarkable differences in the shape of the nematic-smectic-B interface in a quasi-two-dimensional geometry have been experimentally observed in three liquid crystals of very similar molecular structure, i.e., neighboring members of a homologous series. In the thermal equilibrium of the two mesophases a faceted rectanglelike shape was observed with considerably different shape anisotropies for the three homologs. Various morphologies such as dendritic, dendriticlike, and faceted shapes of the rapidly growing smectic-B germ were also observed for the three substances. Experimental results were compared with computer simulations based on the phase field model. The pattern forming behavior of a binary mixture of two homologs was also studied. Cristal·lografia Sòlids Líquids Equacions d'estat Transformacions de fase (Física estadística) Interfícies (Ciències físiques) Ciència dels materials Crystallography Solids Liquids Equations of state Phase transformations (Statistical physics) Interfaces (Physical sciences) Materials science Pattern formation during mesophase growth in a homologous series