Skip to main content

Research Repository

Advanced Search

All Outputs (26)

Ultrasonic propagation through aqueous kaolin suspensions during degassing (1999)
Journal Article
Austin, J. C., & Challis, R. E. (1999). Ultrasonic propagation through aqueous kaolin suspensions during degassing. Ultrasonics, 37(4), https://doi.org/10.1016/S0041-624X%2899%2900004-9

A degassing procedure is necessary prior to taking ultrasonic measurements in aqueous kaolin suspensions as well as many other liquid based colloids. In this work we compare two degassing methods and show that subjecting a sample to a power ultrasoun... Read More about Ultrasonic propagation through aqueous kaolin suspensions during degassing.

The effects of flocculation on the propagation of ultrasound in dilute kaolin slurries (1998)
Journal Article
Austin, J. C., & Challis, R. E. (1998). The effects of flocculation on the propagation of ultrasound in dilute kaolin slurries. Journal of Colloid and Interface Science, 206(1), 146-157. https://doi.org/10.1006/jcis.1998.5712

A broadband ultrasonic spectrometer has been used to measure ultrasonic attenuation and phase velocity dispersion as functions of frequency in kaolin suspensions over a range of solid volume fractions from φ = 0.01 to φ = 0.08 and over a pH range fro... Read More about The effects of flocculation on the propagation of ultrasound in dilute kaolin slurries.

Ultrasonic wave propagation in colloid suspensions and emulsions: Recent experimental results (1996)
Journal Article
Austin, J., Holmes, A., Tebbutt, J., & Challis, R. (1996). Ultrasonic wave propagation in colloid suspensions and emulsions: Recent experimental results. Ultrasonics, 34(2-5), 369-374. https://doi.org/10.1016/0041-624X%2895%2900113-H

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... Read More about Ultrasonic wave propagation in colloid suspensions and emulsions: Recent experimental results.