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Characterization of dry aggregates in carbon anodes by image analysis

Bhattacharyay Dipankar, Kocaefe Duygu, Kocaefe Yasar S., Sarkar Arunima, Morais Brigitte et Chabot Jérôme. (2014). Characterization of dry aggregates in carbon anodes by image analysis. Light Metals, p. 1111-1114.

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URL officielle: https://doi.org/10.1002/9781118888438.ch185

Résumé

Carbon anode is one of the key components in the electrolytic production of primary aluminum. Anodes are mainly composed of dry aggregates such as calcined petroleum coke and recycled materials with pitch as the binder. Granulometry of the dry aggregates is important to obtain good physical, chemical, electrical, and mechanical anode properties. Sieving can indicate the size range of particles, but it does not reveal much information about the shape or nature of the individual particles. This article presents an image analysis technique to study not only the granulometry, but also the physical characteristics (e.g. aspect ratio, roundness, form factor, etc.) of each and every particle. The custom-made software for the image analysis can also separately identify the butt and coke particles based on different shape parameters. This technique could help track changes in granulometry at different stages of the anode production and consequently improve the quality.

Type de document:Article publié dans une revue avec comité d'évaluation
Pages:p. 1111-1114
Version évaluée par les pairs:Oui
Date:2014
Sujets:Sciences naturelles et génie > Génie > Génie des matériaux et génie métallurgique
Département, module, service et unité de recherche:Départements et modules > Département des sciences appliquées > Module d'ingénierie
Mots-clés:carbon anodes, image analysis, form factor, roundness, particle characteristics, butt, coke
Déposé le:06 mai 2019 19:19
Dernière modification:06 mai 2019 19:19
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