Normal Field Effect on Dendritic Growth in Thin Cell Electrodeposition

International audienceWe are studying the effect of a magnetic field normal to the cell in electrodeposition of zinc arborescences. When the cell thickness is reduced, MHD convection, responsible for morphology changes, spiraling, etc. is suppressed, but in high magnetic field there are still effects, also answerable to Lorentz forces: an increased delay before the growth starts, morphology changes resulting from the effect on the nucleation of the branches, smooth spiraling due to the 'Laplace' force on the growing metallic branches