Sedimentation in flocculating colloidal suspensions

Jeffrey S. Abel, Gregory C. Stangle, Christopher H. Schilling, Ilhan A. Aksay

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Abstract

A combined experimental and theoretical investigation of the Sedimentation of unstable colloidal ceramic suspensions has been performed. Suspensions containing submicron-sized a-Al2O3 particles were prepared at various pH values in order to modify suspension stability. Particle volume fraction during Sedimentation was determined as a function of position and time by gamma-ray densitometry. A population balance model was developed to account for various coagulation and decoagulation mechanisms that affect Sedimentation behavior in flocculating suspensions. Model predictions were then compared with experimental measurements, in order to establish the validity of the theoretical model.

Original languageEnglish (US)
Pages (from-to)451-461
Number of pages11
JournalJournal of Materials Research
Volume9
Issue number2
DOIs
StatePublished - Nov 1994

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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    Abel, J. S., Stangle, G. C., Schilling, C. H., & Aksay, I. A. (1994). Sedimentation in flocculating colloidal suspensions. Journal of Materials Research, 9(2), 451-461. https://doi.org/10.1557/JMR.1994.0451