Many dilute solutions or suspensions of rod-like particles become birefringent when subjected to electric fields. On switching off the applied field the birefringence decays away as the particles revert from an ordered to a random orientation state. For polydisperse suspensions it is possible to ev
Particle size distributions from transient electric birefringence data: II. polydisperse discs by two-parameter distribution functions
โ Scribed by V.J. Morris; A.R. Foweraker; B.R. Jennings
- Publisher
- Elsevier Science
- Year
- 1978
- Weight
- 281 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0378-4487
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โฆ Synopsis
An analysis is presented for the decay process encountered in transient electric birefringence experiments. The method is developed for dilute and polydisperse suspensions of constant thickness disc-like particles. If the distribution function describing the spread in particle diameters is of a two parameter form, then this function can be evaluated and the distribution of particle diameters generated from two specific birefringence transient decays. By way of example, the method is fully developed for the log-normal distribution.
๐ SIMILAR VOLUMES
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