Physical, chemical and X-Ray Computed Tomography characterization of anode butt cores

Uthaiporn Suriyapraphadilok, Phillip Halleck, Abraham Grader, John M Andresen

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Citations (Scopus)

Abstract

Three industrial anode butts, with and without recycled butt material, were studied. Non-destructive X-Ray Tomography (X-Ray CT) was used to quantify the spatial distribution of density and porosity in the sample. Apparent and absolute densities were measured and the specific pore volumes were calculated as a function of the distance from the airburn side. The results from the X-Ray CT and the densities and pore volume measurement showed a decrease in apparent density, and an increase in absolute density and specific pore volume from the center of the core to the surfaces. This work indicated that the main factors that derived the change in air and CO2 reactivities of the anodes along the electrolytic surface to the airburn surface were the concentration of the inorganic contents, e.g. sodium, calcium, etc., and the porosity of the carbon material.

Original languageEnglish
Title of host publicationLight Metals 2005
Subtitle of host publicationProceedings of the Technical Sessions at the TMS Aluminum Committee at the 134th TMS Annual Meeting
EditorsHalvor Kvande
PublisherMinerals, Metals and Materials Society
Pages617-621
Number of pages5
ISBN (Print)9780873395809
Publication statusPublished - 2005
EventLight Metals 2005 - San Francisco, United States
Duration: 13 Feb 200517 Feb 2005

Conference

ConferenceLight Metals 2005
CountryUnited States
CitySan Francisco
Period13/02/0517/02/05
OtherTechnical Sessions at the TMS Aluminum Committee at the 134th TMS Annual Meeting

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