Structure of the repulsive gel/glass in suspensions of charged colloidal platelets

M.C.D. Mourad, D.V. Byelov, A.V. Petukhov, H.N.W. Lekkerkerker

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

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.
Original languageEnglish
Pages (from-to)494201 /1-494201 /6
Number of pages6
JournalJournal of physics. Condensed matter
Volume20
Issue number49
Publication statusPublished - 2008

Fingerprint

Dive into the research topics of 'Structure of the repulsive gel/glass in suspensions of charged colloidal platelets'. Together they form a unique fingerprint.

Cite this