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Ultrasonic wave propagation in colloid suspensions and emulsions: recent experimental results

Authors
Journal
Ultrasonics
0041-624X
Publisher
Elsevier
Publication Date
Volume
34
Identifiers
DOI: 10.1016/0041-624x(95)00113-h
Keywords
  • Chapter 5. Materials Characterization
Disciplines
  • Chemistry
  • Computer Science
  • Musicology
  • Physics

Abstract

Abstract Early theories of acoustic propagation such as those by Urick, and Urick and Ament, are attractive because of their computational simplicity, but limited in application. The more complex models of Allegra and Hawley, and Harker and Temple, have since gained application. A wideband ultrasonic attenuation and phase velocity spectrometer have been used to determine the validity of these models for a range of colloidal materials. Measurements taken validate the Allegra and Hawley model for colloids with spherical base particles. The Harker and Temple model is used to infer changes in the flocculation state of kaolin slurries which result from chemical intervention.

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