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Particle size distribution from transient electric birefringence data: III. polydisperse ellipsoids by two-parameter distribution functions

✍ Scribed by V.J. Morris; A.R. Foweraker; B.R. Jennings

Publisher: Elsevier Science
Year: 1978
Weight: 273 KB
Volume: 12
Category: Article
ISSN: 0378-4487
DOI: 10.1016/0378-4487(78)80029-6

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✦ Synopsis

The decay of the electrically induced transient birefringence, for a dilute polydis~erse suspension of ellipsoidally shaped particles of constant axial ratio, is analysed. It is shown that, for the decay process, the initial slopes of the natural logarithm of the normalised birefringence versus time curves for transients obtained under two discrete experimental conditions provide sufficient d~ta to describe the spread in particle size in terms of two-parameter distribution functions. The procedure is described for three common skew distributions and two symmetric ones. A simple procedure for identifying the most appropriate distribution function is given.

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