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Confocal Microscopic Studies on Evolution of Crystals During Oxidation of the FeO-CaO-SiO2-MnO Slags

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Abstract

The current work investigates dynamic phenomena at the microstructural level during iron and manganese recovery from the liquid FeO-CaO-SiO2-MnO slags using an oxidation method. A hot-stage-equipped confocal scanning laser microscope (CSLM) was used to analyze the kinetic behavior of crystallization in synthetic slags. Based on observed precipitations on cooling in the 1273 K (1000 °C) to 1873 K (1600 °C) temperature range, a time–temperature–transformation (TTT) diagram has been created. The crystallization studies were conducted in air.

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Acknowledgments

The authors thank the Swedish Foundation for Strategic Environmental Research (MISTRA) for financial support through the project Eco-Steel Production (Sub project number 88035) administered by the Swedish Steel Producers Association (Jernkontoret). The partial financial support for Anna Semykina from Swedish Institute also is gratefully acknowledged.

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Authors and Affiliations

  1. Royal Institute of Technology, Stockholm, SE-100 44, Sweden

    Anna Semykina (Ph.D. Student) & Seshadri Seetharaman (Professor)

  2. National Metallurgical Academy of Ukraine, Dnipropetrovsk, 49600, Ukraine

    Anna Semykina (Ph.D. Student) & Volodymyr Shatokha (Professor and Vice-Rector)

  3. Carnegie Mellon University, Pittsburgh, PA, 15213, USA

    Jinichiro Nakano (Ph.D) & Seetharaman Sridhar (POSCO Professor)

Authors
  1. Anna Semykina
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  2. Jinichiro Nakano
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  3. Seetharaman Sridhar
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  4. Volodymyr Shatokha
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  5. Seshadri Seetharaman
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Corresponding author

Correspondence to Anna Semykina.

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Manuscript submitted May 4, 2010.

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Semykina, A., Nakano, J., Sridhar, S. et al. Confocal Microscopic Studies on Evolution of Crystals During Oxidation of the FeO-CaO-SiO2-MnO Slags. Metall Mater Trans B 41, 940–945 (2010). https://doi.org/10.1007/s11663-010-9392-2

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  • DOI: https://doi.org/10.1007/s11663-010-9392-2

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