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 | Nanotech 2001 Vol. 2
Technical Proceedings of the 2001 International Conference on Computational Nanoscience and Nanotechnology
Chapter 3: Polymers and Colloids |
| | Colloidal Aggregation in the Presence of Gravity | | Authors: | A.E. Gonzalez | | Affilation: | Universidad Nacional Autonoma de Mexico, Mexico | | Pages: | 49 - 52 | | Keywords: | colloidal aggregation, sedimentation, deposition, computer simulations | | Abstract: | A computational model for colloidal aggregation is presented that considers the Brownian motion, the sedimentation and the deposition experienced by the colloidal particles and clusters. Among the results, for intermediate strengths of the downward gravitational drift, the aggregation crosses over from diffusion-limited colloidal aggregation (DLCA) to another type of aggregation with a higher cluster fractal dimension, Df. We also get a critical gelation concentration higher by several orders of magnitude, as compared to the non-drifting case. Although our results are in full accordance with the experimental ones, some interpretations are different. |  | View paper | | ISBN: | 0-9708275-3-9 |
| Pages: | 218 |
| Hardcopy: | $100.00 |
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