TY - JOUR
T1 - Depletion forces and packing models
AU - Xiao, Changming
AU - Wylie, Jonathan
PY - 2006/9/11
Y1 - 2006/9/11
N2 - In binary colloidal suspensions, due to the depletion forces, large spheres tend to pack together so as to make entropy maximum. Based on the complexities of depletion forces and phase behaviors in binary mixtures, two packing models, named nucleation and non-nucleation packing, are proposed in this Letter. Numerical results show that, when the volume fraction is small, the nucleation is possible. As a result, the large spheres tend to pack into a larger and larger cluster. However, when the volume fraction is very large in a way, the hard-spheres will proceed in the non-nucleation packing fashion. The numerical results also show that differences between the two packing models decrease with the decrease of volume fraction. © 2006 Elsevier B.V. All rights reserved.
AB - In binary colloidal suspensions, due to the depletion forces, large spheres tend to pack together so as to make entropy maximum. Based on the complexities of depletion forces and phase behaviors in binary mixtures, two packing models, named nucleation and non-nucleation packing, are proposed in this Letter. Numerical results show that, when the volume fraction is small, the nucleation is possible. As a result, the large spheres tend to pack into a larger and larger cluster. However, when the volume fraction is very large in a way, the hard-spheres will proceed in the non-nucleation packing fashion. The numerical results also show that differences between the two packing models decrease with the decrease of volume fraction. © 2006 Elsevier B.V. All rights reserved.
UR - http://www.scopus.com/inward/record.url?scp=33745991782&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-33745991782&origin=recordpage
U2 - 10.1016/j.physleta.2006.05.088
DO - 10.1016/j.physleta.2006.05.088
M3 - RGC 21 - Publication in refereed journal
SN - 0375-9601
VL - 357
SP - 245
EP - 248
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 3
ER -