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Cristin-resultat-ID:
1900190
Sist endret:
10. september 2021, 11:04
NVI-rapporteringsår:
2021
Resultat
Vitenskapelig artikkel
2021
Wetting of Carbon Cathodes by Molten Electrolyte and Aluminium
Samuel Senanu
Arne Petter Ratvik
Zhaohui Wang
og
Tor Grande
Tidsskrift
Tidsskrift
The Minerals, Metals & Materials Series
ISSN 2367-1181
e-ISSN 2367-1696
NVI-nivå 1
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Om resultatet
Om resultatet
Vitenskapelig artikkel
Publiseringsår: 2021
Sider: 699 - 707
Open Access
Lenker
Lenker
original online (doi)
https://doi.org/10.1007/978-3-030-65396-5_92
Institusjonsarkiv
hdl.handle.net/11250/3018715
Beskrivelse
Beskrivelse
Engelsk
Tittel
Wetting of Carbon Cathodes by Molten Electrolyte and Aluminium
Sammendrag
The extent to which the carbon cathode is wetted by molten electrolyte or molten aluminium metal is important for understanding the cathode wear during aluminium electrolysis. The present paper reports on a laboratory study of the wettability of four different carbon materials using the immersion–emersion technique. The effect of polarization of the carbon cathode on the wettability was also included in the study. The measurements demonstrated that the carbon material is poorly wetted by the molten electrolyte or the metal. After polarization of the carbon in the cathodic direction, the cathode became quickly wetted by the molten electrolyte. The presence of aluminium during the experiments resulted in enhanced wettability by the molten electrolyte. The carbon materials were analyzed by microscopy after the experiments and formation of Al4C3 was observed on the surfaces of the materials. The role of sodium in relation to enhanced wettability by molten electrolyte is discussed.
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fullstendig beskrivelse
Bidragsytere
Bidragsytere
Samuel Senanu
Forfatter
ved Metallproduksjon og prosessering ved SINTEF AS
Arne Petter Ratvik
Forfatter
ved Metallproduksjon og prosessering ved SINTEF AS
Zhaohui Wang
Forfatter
ved Metallproduksjon og prosessering ved SINTEF AS
Tor Grande
Forfatter
ved Institutt for materialteknologi ved Norges teknisk-naturvitenskapelige universitet
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