Open AccessSHORT-TIME DYNAMICS OF TWO-COMPONENTCOLLOIDAL SUSPENSIONS
Author(s) -
Haiyan Zhang,
Gerhard M Gele,
Hongru Ma
Publication year - 2001
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.50.1810
Subject(s) - binary number , diffusion , spheres , charge (physics) , component (thermodynamics) , colloid , physics , dynamics (music) , materials science , chemical physics , self diffusion , hard spheres , charge density , rotational diffusion , character (mathematics) , tensor (intrinsic definition) , statistical physics , thermodynamics , molecule , chemistry , quantum mechanics , geometry , arithmetic , mathematics , self service , astronomy , marketing , acoustics , pure mathematics , business
We calculate the short-time translational and rotational self-diffusion coefficients for charge-stabilized binary colloidal suspensions where the density of one component is very dilute.The two-body and leading three-body contributions of hydrodynamic interaction (HI) to the diffusion tensor are taken into account.Due to both electrostatic interactions and HI, the self-diffusion coefficients depend on effective charge numbers,volumn fractions and sizes of two kinds of spheres, and the results can be explained by the effective hard sphere model.The influence of HI on charge-stabilized binary systems is less than that on hard-sphere binary systems.