Effects of Recycling Ladle Lining Materials on Phase Composition and Microstructure of Al2O3-SiC-C Castable for Iron Runner

Yi Cui; Rong Lin Wang; Li Ren Wang; Jing Long Bu; Qian Wang

doi:10.4028/www.scientific.net/AMR.652-654.1614

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 652-654Effects of Recycling Ladle Lining Materials on...

Effects of Recycling Ladle Lining Materials on Phase Composition and Microstructure of Al₂O₃-SiC-C Castable for Iron Runner

Abstract:

In this experiment, preparation of samples were based on original ratio of bauxite matrix Al₂O₃-SiC-C castable for iron tap channel, and partial bauxites of size 8-5 mm, 5-3 mm, 3-1 mm and 2O₃-MgO-C ladle bricks, respectively. Effects of recycling ladle lining materials on phase composition and microstructure of Al₂O₃-SiC-C castable for iron runner were investigated by XRD, SEM and EDS. The results showed that new phases SiO₂ and (Mg_0.804Ca_0.196)₃Al₂(SiO₄)₃ were formed in the castable at 1450 oC in air atmosphere, and the spherical (Mg_0.804Ca_0.196)₃Al₂(SiO₄)₃ was formed on external surface of recycling Al₂O₃-MgO-C particle. thereinto, SiC oxidation to formed SiO₂ with flow pattern character was key element of the phase (Mg_0.804Ca_0.196)₃Al₂(SiO₄)₃ formation. The more fine and uniform of recycling Al₂O₃-MgO-C particles, the more spherical (Mg_0.804Ca_0.196)₃Al₂(SiO₄)₃ was formed in recycling Al₂O₃-SiC-C castable. Internal structure of theirs samples exhibited looser state with content increasing of recycling ladle lining materials.

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Periodical:

Advanced Materials Research (Volumes 652-654)

Pages:

1614-1618

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.1614

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Online since:

January 2013

Authors:

Yi Cui, Rong Lin Wang, Li Ren Wang, Jing Long Bu, Qian Wang

Keywords:

Castable for Iron Runner, Ladle Lining, Microstructure, Phase Composition, Recycling Materials

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