Back to Search
Start Over
Short-time diffusivity of dicolloids.
- Source :
-
Physical Review E: Statistical, Nonlinear & Soft Matter Physics . Jun2014, Vol. 89 Issue 6-A, p1-7. 7p. - Publication Year :
- 2014
-
Abstract
- The short-time diffusivity of dicolloid particles as a function of particle volume fraction ɸ from 0.01 ≤ ɸ ≤ 0.6 is measured using diffusing wave spectroscopy. The diffusivities of symmetric and asymmetric dicolloids are compared with similarly sized spheres. The short-time diffusivity is independent of salt concentration and decreases with increasing volume fraction for both spheres and asymmetric dicolloids. Symmetric dicolloids have a higher diffusivity than spheres at similar volume fractions. This difference is accounted for by rescaling the dicolloid volume fraction based on the ratio of the random close-packing volume fractions of spheres and dicolloids. Finally, a useful method is provided for calculating the diffusivity of symmetric dicolloid particles of arbitrary aspect ratio based on the calculated hydrodynamic resistance of Zabarankin [Proc. R. Soc. A 463, 2329 (2007)]. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15393755
- Volume :
- 89
- Issue :
- 6-A
- Database :
- Academic Search Index
- Journal :
- Physical Review E: Statistical, Nonlinear & Soft Matter Physics
- Publication Type :
- Academic Journal
- Accession number :
- 97159419
- Full Text :
- https://doi.org/10.1103/PhysRevE.89.062311