Reference : Gravity-induced liquid crystal phase transitions of colloidal platelets
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
http://hdl.handle.net/10993/7743
Gravity-induced liquid crystal phase transitions of colloidal platelets
English
van der Beek, D. [Van’t Hoff Laboratory for Physical and Colloid Chemistry, Utrecht University, Netherlands]
Schilling, Tanja mailto [Institut für Physik, Johannes Gutenberg Universität, 55099 Mainz, Germany]
Lekkerkerker, H. N. W. [Van’t Hoff Laboratory for Physical and Colloid Chemistry, Utrecht University, Netherlands]
2004
Journal of Chemical Physics
AMER INST PHYSICS, CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
121
11
5423-5426
Yes (verified by ORBilu)
International
0021-9606
1089-7690
[en] he influence of gravity on a suspension of sterically stabilized colloidal gibbsite platelets is studied. An initially isotropic-nematic biphasic sample of such a suspension develops a columnar phase on the bottom on prolonged standing. This phenomenon is described using a simple osmotic compression model. We performed Monte Carlo simulations of cut spheres with aspect ratio L/D = 1/15 and took data from the literature to supply the equations of state required for the model. We find that the model describes the observed three-phase equilibrium quite well.
http://hdl.handle.net/10993/7743
10.1063/1.1783231

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