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VOLUME 77, NUMBER 23 P H Y S I C A L R E V I E W L E T T E R S 2 DECEMBER 1996 Phase Diagram of Colloidal Solutions
 

Summary: VOLUME 77, NUMBER 23 P H Y S I C A L R E V I E W L E T T E R S 2 DECEMBER 1996
Phase Diagram of Colloidal Solutions
Neer Asherie, Aleksey Lomakin, and George B. Benedek
Department of Physics and Center for Materials Science and Engineering, Massachusetts Institute of Technology,
Cambridge, Massachusetts 02139-4307
(Received 1 July 1996)
The phase diagram of globular colloids is studied using a combined analytic and computational
representation of the relevant chemical potentials. It is shown how the relative positions of the phase
boundaries are related to the range of interaction and the number of contacts made per particle in the
solid phase. The theory presented successfully describes the features of the phase diagrams observed
in a wide variety of colloidal systems. [S0031-9007(96)01805-4]
PACS numbers: 82.70.Dd, 64.70.Ja
The phase diagrams of colloidal solutions have been
studied for over a century not only because of their great
theoretical interest, but also for the many industrial ap-
plications of colloids [1]. The most commonly observed
phase transition in colloidal solutions is solidification.
Upon a change in temperature (or other external condi-
tion) the colloidal particles form a condensed phase which
may have a regular structure (crystals) or be amorphous

  

Source: Asherie, Neer - Departments of Physics & Biology, Yeshiva University
Benedek, George B. - Department of Physics, Massachusetts Institute of Technology (MIT)

 

Collections: Biology and Medicine; Physics