Particle interaction and rheology of illite-iron oxide complexes

Masami Ohtsubo, Akiko Yoshimura, Shin Ichiro Wada, Raymono N. Yong

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The Bingham yield stress for suspensions of iUite-iron oxide complexes is examined as a function of pH and iron oxide content. Addition of iron oxides to illite increased the yield stress over a pH range of 3 to 10. With increasing pH the yield stress decreased for the complexes with iron oxides of 2 and 5% while the complexes with iron oxides of 7, 10, and 20% exhibited the maximum yield stresses at pH values from 6 to 8. The iron oxides which are not associated with the illite enhanced the yield stress more than the iron oxides precipitated on the illite surfaces. The yield stress for the complexes was correlated with their zeta potential, and the higher yield stress is considered due to smaller interparticle repulsion.

Original languageEnglish
Pages (from-to)347-354
Number of pages8
JournalClays and Clay Minerals
Volume39
Issue number4
DOIs
Publication statusPublished - Aug 1991

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)

Cite this