Acta Phys. -Chim. Sin. ›› 1999, Vol. 15 ›› Issue (05): 467-470.doi: 10.3866/PKU.WHXB19990516

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Study on Mechanism of Breakage and Coalescence of Colloidal Aggregates at Steady-state under Shear

Li Jing-Sheng, Bian Xuan-Xia   

  1. School of Metallrgy,Xi'an University of Architecture and Technology,The University Library Xi'an 710055
  • Received:1998-07-27 Revised:1998-09-28 Published:1999-05-15
  • Contact: Li Jing-Sheng

Abstract:

Population correlation function P(t) has been used to examine the mechanism of breakage and coalescence of clusters at steady-state under shear, the results are in qualitative agreement with experiments. The research indicates that with a weak potential the mechanism of breakage and coalescence of clusters at steady-state under shear is predominately controlled by the particle-particle model, but that with a strong potential the mechanism shifts to that of cluster-cluster for large clusters; for small clusters, however, the mechanism of particle-particle model seems still to remain predominate, further work needs to be done.

Key words: Aggregating mechnism, Computer simulation, Population correlation function