✦ LIBER ✦

Spinodal Decomposition in Ternary Systems with Significantly Different Component Diffusivities

✍ Scribed by Abdulrahman A. Alfarraj; E. Bruce Nauman

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 211 KB
Volume: 16
Category: Article
ISSN: 1022-1344
DOI: 10.1002/mats.200700025

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✦ Synopsis

Abstract

A numerical method for simulating spinodal decomposition in ternary systems with order‐of‐magnitude differences in diffusion coefficients is presented. The method has been partially verified by molecular dynamic simulations and gives results equivalent to the standard technique when the diffusivities are equal. A two‐dimensional simulation of an asymmetric polymer/polymer/polymer system reproduces an experimentally observed bimodal distribution of dispersed‐phase particle sizes. The ripening exponent for the larger particles is near the expected value of 0.33, but that for the smaller particles is only about 0.1. The method was also used for a polymer/polymer/solvent system.

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Molecular diffusion in a ternary liquid

Molecular diffusion in a ternary liquid system with the diffusing component dilute

✍ L.R. Perkins; C.J. Geankoplis 📂 Article 📅 1969 🏛 Elsevier Science 🌐 English ⚖ 649 KB

Abstraet-Experimental molecular ditfusivity data were obtained for two ternary liquid systems with a dilute solute diffusing in a very non-ideal solvent mixture and a second dilute solute in a viscous solvent mixture using the diaphragm-cell method. Using only the diffusion data of the solute in eac