Morphology and Texture of Zinc Deposits Formed at the Edge of a Rotating Washer Electrode

In this paper, a rotating washer electrode was used to simulate the industrial conditions of strip edges during electrogalvanizing. Using this experimental setup, morphology and texture of the zinc deposits and dendrites formed at the edge of the electrode were studied. Dendrite precursors in the co...

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Autores principales: Bengoa, Leandro Nicolás, Seré, Pablo Ricardo, Conconi, María Susana, Egli, Walter Alfredo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ingeniería en Materiales
Crystal orientation
Dendritic growth
Electroplating
Texture
Zinc
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/137705
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-137705
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería en Materiales
Crystal orientation
Dendritic growth
Electroplating
Texture
Zinc
spellingShingle Ingeniería en Materiales
Crystal orientation
Dendritic growth
Electroplating
Texture
Zinc
Bengoa, Leandro Nicolás
Seré, Pablo Ricardo
Conconi, María Susana
Egli, Walter Alfredo
Morphology and Texture of Zinc Deposits Formed at the Edge of a Rotating Washer Electrode
topic_facet Ingeniería en Materiales
Crystal orientation
Dendritic growth
Electroplating
Texture
Zinc
description In this paper, a rotating washer electrode was used to simulate the industrial conditions of strip edges during electrogalvanizing. Using this experimental setup, morphology and texture of the zinc deposits and dendrites formed at the edge of the electrode were studied. Dendrite precursors in the corner of the washer edge were well characterized and their nucleation and growth were also studied. The results indicated that the rotation speed has little effect on texture while, in contrast, current density modifies dendrites texture. It was found that dendrites are formed by platelets which are stacked on one another, which grow up in a series of steps oriented in the direction of growth of the dendrites stem yielding highly oriented structure. The presence of sodium ions in the electrolyte changes the morphology and shape of dendrites leading to rounded, cabbage-shaped crystals, while thiourea changes the morphology of both the deposit in the flat portion of the washer and the dendrites through adsorption on the zinc surface.
format Articulo
Articulo
author Bengoa, Leandro Nicolás
Seré, Pablo Ricardo
Conconi, María Susana
Egli, Walter Alfredo
author_facet Bengoa, Leandro Nicolás
Seré, Pablo Ricardo
Conconi, María Susana
Egli, Walter Alfredo
author_sort Bengoa, Leandro Nicolás
title Morphology and Texture of Zinc Deposits Formed at the Edge of a Rotating Washer Electrode
title_short Morphology and Texture of Zinc Deposits Formed at the Edge of a Rotating Washer Electrode
title_full Morphology and Texture of Zinc Deposits Formed at the Edge of a Rotating Washer Electrode
title_fullStr Morphology and Texture of Zinc Deposits Formed at the Edge of a Rotating Washer Electrode
title_full_unstemmed Morphology and Texture of Zinc Deposits Formed at the Edge of a Rotating Washer Electrode
title_sort morphology and texture of zinc deposits formed at the edge of a rotating washer electrode
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/137705
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