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Assimilation Behavior of Calcium Ferrite and Calcium Diferrite with Sintered Al2O3 and MgO

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Abstract

In this study, the assimilation behaviors between calcium ferrite (CF), calcium diferrite (CF2) and sintered Al2O3, and MgO were explored by an improved sessile drop technique, and the interfacial microstructure was discussed. The results indicated that the apparent contact angles of CF slag on Al2O3 and MgO substrate were 15.7 and 5.5 deg, and the apparent contact angles of CF2 slag on Al2O3 and MgO substrate were 17.9 and 7.2 deg, respectively. Namely, CF and CF2 slag were wetting well with Al2O3 and MgO substrate. The dissolution of Al2O3 substrate into the CF and CF2 slag was found to be the driving force of the wetting process. For the CF-MgO and CF2-MgO substrate systems, CaO contrarily distributed with MgO after wetting. For the CF-MgO system, after wetting, the slag was composed of CF and C2F, and most of the Fe2O3 permeated into substrate and formed two permeating layers.

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Acknowledgments

The authors are thankful to the Projects of National Natural Science Foundation (51504003) and Science and Technology Development of Anhui Province (1501041126) and Natural Science Research of universities of Anhui Province (KJ2015A028) for sponsoring the study.

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Authors and Affiliations

  1. School of Metallurgical Engineering, Anhui University of Technology, Ma’anshan, 243002, China

    Hongming Long, Xuejian Wu, Tiejun Chun & Zhanxia Di

  2. School of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China

    Bin Yu

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  1. Hongming Long
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Correspondence to Tiejun Chun.

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Manuscript submitted March 14, 2016.

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Long, H., Wu, X., Chun, T. et al. Assimilation Behavior of Calcium Ferrite and Calcium Diferrite with Sintered Al2O3 and MgO. Metall Mater Trans B 47, 2830–2836 (2016). https://doi.org/10.1007/s11663-016-0723-9

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