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A theory of dendritic growth in electrolytes

✍ Scribed by D.R. Hamilton

Publisher: Elsevier Science
Year: 1963
Tongue: English
Weight: 458 KB
Volume: 8
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(63)85018-5

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✦ Synopsis

A treatment is given relating the growth velocity, tip radius and overpotential for an electrolytic dendrite, taken to be a moving paraboloid of revolution. The equation is fitted to the recent data of Barton and Bockris on silver dendrites growing in NaNOa-KNO~ eutectic. To achieve a fit, the activation potential, and a reversible interfacial potential related to surface energy were taken to be lower than expected from macroscopic data. This implies that diffusion predominated in the control of growth. Some comparisons are made between the behaviour of these dendrites and melt grown germanium dendrites containing twins. If all the planar silver dendrites contained twin planes, agreement may be found with the reported growth behaviour.

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