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Citation: Li Jing-Sheng, P.Mark Rodger. Characteristics of Colloidal Aggregates with Many-body Effect[J]. Acta Physico-Chimica Sinica, ;1997, 13(01): 28-35. doi: 10.3866/PKU.WHXB19970106 shu

Characteristics of Colloidal Aggregates with Many-body Effect

1.
Department of Metallurgy,Xi'an University of Architecture and Technology

Received Date: 31 May 1996
Available Online: 15 January 1997

Effects of many-body (by Sutton-Chen potential, SC) on colloidal aggregates have been examined and compared with that ot two-body (by Lennard-Jones potential, LJ)Some characteristics were similar in both SC and LJ systems such as potential energy increased, and the number of particles in a cluster decreased with increasing shear rates; clusters were stretched remarkably in shear (X axis) direction and the longest axis of clusters deviated from X axis under stronger shear held; etc. Their differences were also obvious : arrangement of particles in SC system was more reasonable than in LJ system so that the potential energy in SC system was lower 1-3 dimensionless energy units, thereby clusters in SC system were closer and their fractal dimension higher; dependent of petential energy for particles, average cluster size and fractal dimension on shear rates was weaker in SC than in LJ systems; morphologies of clusters were occasionally changed to some extent.
- Many-body effect,
- Colloids,
- Computer simulation
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