Abstract
Autopsies of six spent potlinings with different carbon cathode block grades, amperage regimes and cell technologies were conducted at three separate smelters to reveal possible mechanisms causing cathode wear. Microstructure of the cathode samples from the autopsies was investigated by optical and electron microscopy and X-ray computed tomography, while the composition of solid bath at the surface and in the interior pores were investigated by X-ray diffraction and electron microscopy.
NB: This is an extended abstract of an article to be published in JOM with the same title.
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Acknowledgements
Financial support from the Norwegian Research Council and the partners Hydro, Alcoa, Elkem Carbon and Skamol through the project “CaRMa—Reactivity of Carbon and Refractory Materials used in Metal Production Technology” is acknowledged.
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© 2019 The Minerals, Metals & Materials Society
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Senanu, S., Wang, Z., Ratvik, A.P., Grande, T. (2019). Carbon Cathode Wear in Aluminium Electrolysis Cells. In: Chesonis, C. (eds) Light Metals 2019. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-05864-7_162
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DOI: https://doi.org/10.1007/978-3-030-05864-7_162
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Publisher Name: Springer, Cham
Print ISBN: 978-3-030-05863-0
Online ISBN: 978-3-030-05864-7
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