Phase Evolution Simulation of Al2O3-SiС-C Castable with Cr2O3 Addition by Thermodynamic Calculation

Yu Cheng Yin; Yu Cheng Yin; Shan Ge; Jiu Chang Lu; Jian Hua Nie

doi:10.4028/www.scientific.net/AMR.462.77

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 462Phase Evolution Simulation of Al2O3-SiС-C Castable...

Phase Evolution Simulation of Al₂O₃-SiС-C Castable with Cr₂O₃ Addition by Thermodynamic Calculation

Abstract:

In order to make sure whether the Cr₂O₃ would change to Cr⁶⁺ during the service, 4wt % Cr₂O₃ was added to the calcium aluminate cement bonded Al₂O₃-SiC-C castables for blast furnace main trough, then the phase evolution was analyzed through thermodynamic calculation done by Factsage 6.1 under air atmosphere, which is close to its real work conditions. Calculations results show that Cr₂O₃ was reduced to Cr₃C₂ with low air amount, with amount of air increase, Cr₃C₂ transformed to Cr₄C and Cr₅Si₃ successively, and turned to Cr₂O₃ at last with much more air, and no compound including Cr⁶⁺ was founded.

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Periodical:

Advanced Materials Research (Volume 462)

Pages:

77-83

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.462.77

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Online since:

February 2012

Authors:

Yu Cheng Yin, Yu Cheng Yin, Shan Ge, Jiu Chang Lu, Jian Hua Nie

Keywords:

Al₂O₃-SiC-C Сastable, Cr₂O₃, Thermodynamic Calculation

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