| Autor: |
Mourad, M.C.D., Byelov, D.V., Petukhov, A.V., Lekkerkerker, H.N.W., Colloïden en grenslagen, Physical and Colloid Chemistry 2, Sub Physical and Colloid Chemistry, Dep Scheikunde, Physical and Colloid Chemistry 1 |
| Jazyk: |
angličtina |
| Rok vydání: |
2008 |
| Zdroj: |
Journal of physics. Condensed matter, 20(49), 494201 /1. IOP PUBLISHING LTD |
| ISSN: |
0953-8984 |
| Popis: |
Rheological, optical and structural properties of colloidal suspensions of charge-stabilized gibbsite platelets across the sol–gel transition region are investigated. In this work we focus on samples with a low salt content (10−4 M). While at a gibbsite concentration of 300 g l−1, a nematic–columnar phase separation is observed, an arrested state with a nematic signature and highly elastic response has been observed for a concentration of 400 g l−1. A temporal evolution of the structure of the arrested state, which leads to stronger interparticle correlations, has been observed on a timescale of 20 months. The results suggest that the arrested state develops into a glass with a columnar nematic structure. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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