Abstract
The campaign life of blast furnaces can be greatly limited by the interactions of carbon walls with liquid Fe-Csat. Numerous carbon forms have been investigated but not glassy carbon. In this work, liquid Fe-Csat catalyzed the graphitization of glassy carbon crucibles heated in a high-temperature confocal scanning laser microscope. Graphitization created readily wetted pores into which the hot metal penetrated, similar to the embrittlement layer seen in blast furnace hearth refractory.
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The authors would like to acknowledge the gracious support of the member companies of the Center for Iron and Steelmaking Research as well as the Materials Characterization Facility at Carnegie Mellon University supported by Grant MCF-677785.
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Manuscript submitted July 27, 2020 and accepted October 8, 2020.
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Britt, T., Pistorius, P.C. Catalytic graphitization of Glassy Carbon by Molten Fe-Csat. Metall Mater Trans B 52, 1–5 (2021). https://doi.org/10.1007/s11663-020-02003-7
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DOI: https://doi.org/10.1007/s11663-020-02003-7