| Автор | René van Roij |
| Автор | Robert Evans |
| Дата выпуска | 1999-12-20 |
| dc.description | We calculate phase diagrams of low-salt suspensions of charged colloidal particles using a recently proposed effective one-component Hamiltonian for the colloids (van Roij R, Dijkstra M and Hansen J-P 1999 Phys. Rev. E 59 2010). This Hamiltonian consists of the purely repulsive pairwise Derjaguin, Landau, Verwey, and Overbeek (DLVO) potential and density-dependent volume terms. The latter play a crucial role in driving phase transitions at salt concentrations of the order of 10 µM or lower. We find phase diagrams that exhibit gas-liquid coexistence with upper and lower critical points, and, for sufficiently large surface charge densities, upper and lower gas-liquid-solid triple points. A connection between the Debye-Hückel theory for simple electrolytes and the DLVO theory for colloidal suspensions is made. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Phase equilibria in a model of low-salt suspensions of charged colloids |
| Тип | paper |
| DOI | 10.1088/0953-8984/11/50/301 |
| Electronic ISSN | 1361-648X |
| Print ISSN | 0953-8984 |
| Журнал | Journal of Physics: Condensed Matter |
| Том | 11 |
| Первая страница | 10047 |
| Последняя страница | 10060 |
| Аффилиация | René van Roij; H H Wills Physics Laboratory, Royal Fort, University of Bristol, Bristol BS8 1TL, UK |
| Аффилиация | Robert Evans; H H Wills Physics Laboratory, Royal Fort, University of Bristol, Bristol BS8 1TL, UK |
| Выпуск | 50 |
