Rheology of Concentrated Suspensions of Spheres. II. Highly Concentrated Suspensions and Pastes

Abstract

A modified Stormer viscometer was used to study the flow behavior of suspensions of glass beads in liquids of different polarity over the volume concentration range from 50 to 60 percent. The flow behavior was pseudoplastic in some cases but rigid pastes were observed in other cases in this concentration range. The nature of the particle surface affected the flow behavior in the same manner as at lower concentrations. At still higher concentrations ( > 60 v/o), a yield stress was found for all systems. Slipping occurred in the viscometer, and this phenomenon sets an upper limit for the study of concentrated suspensions.

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Document Details

Document Type
Technical Report
Publication Date
Aug 30, 1974
Accession Number
ADA001345

Entities

People

  • Christopher T. Hill
  • Lawrence E. Nielsen
  • Sheau Van Kao

Organizations

  • Monsanto

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Contracts
  • Department Of Defense
  • Equations
  • Fluids
  • Glycerols
  • Materials
  • Measurement
  • Military Research
  • Molecular Weight
  • Particles
  • Polarity
  • Rheology
  • Shear Stresses
  • Stresses
  • Sugar Alcohols
  • Universities
  • Viscosity

Fields of Study

  • Environmental science

Readers

  • Aerosol Science/Aerosol Physics
  • Fluid Dynamics.