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Investigation on the structure of carbonized pitch and calcined coke-carbonized pitch interface in carbon anodes by etching

Huang Xianai, Kocaefe Duygu, Lu Ying, Bhattacharyay Dipankar, Kocaefe Yasar S. et Coulombe Patrick. (2016). Investigation on the structure of carbonized pitch and calcined coke-carbonized pitch interface in carbon anodes by etching. Journal of Materials Research, 31, (22), p. 3513-3521.

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URL officielle: http://dx.doi.org/doi:10.1557/jmr.2016.396

Résumé

A novel, simple, quick, and economic method has been developed to etch samples for characterizing the structural aspects of carbonized pitch alone and in baked anodes. Hot air is used to etch the polished carbonized pitch surface for creating its topography; followed by the characterization of the structure using scanning electron microscope. Hot air preferentially etches the carbonized pitch, which make the differentiation of carbonized pitch from the calcined coke particles possible in baked anode. After etching, lamellar parallel cracks are created and fine granular mosaics are observed on the surfaces of carbonized pitch. The structural composition in baked anode differs visibly from the pure carbonized pitch baked under the same conditions. This may be due to the effect of fine coke particles in anode on the formation of structure during baking. The etching technique permits the determination of the internal structure of carbonized pitch and its interface with coke in anode.

Type de document:Article publié dans une revue avec comité d'évaluation
Volume:31
Numéro:22
Pages:p. 3513-3521
Version évaluée par les pairs:Oui
Date:2016
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 anode, etching, structure, carbonized pitch, SEM, interface
Déposé le:18 avr. 2019 00:02
Dernière modification:18 avr. 2019 00:02
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