Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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Thermodynamic Behavior of Si in Mn-Si Melts

Mn-Si 용탕내 Si의 열역학적 거동

  • Paek, Min-Kyu (Department of Metallurgical and Materials Engineering, Hanyang University) ;
  • Jang, Jung-Mock (Department of Metallurgical and Materials Engineering, Hanyang University) ;
  • Kang, Youn-Bae (Graduate Institute of Ferrous Technology(GIFT), Pohang University of Science and Technology(POSTECH)) ;
  • Pak, Jong-Jin (Department of Metallurgical and Materials Engineering, Hanyang University)
  • 백민규 (한양대학교 금속재료공학과) ;
  • 장정목 (한양대학교 금속재료공학과) ;
  • 강윤배 (포항공과대학교 철강대학원) ;
  • 박종진 (한양대학교 금속재료공학과)
  • Received : 2011.12.23
  • Published : 2012.02.25
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Abstract

Equilibria between Mn-Si melts and $MnO-SiO_2$ slags were studied at 1673 K and 1773 K in MnO crucibles to accurately determine the thermodynamic property of the Mn-Si melts. The Unified Interaction Parameter Formalism (UIPF) was used to describe the thermodynamic property of the Mn-Si liquid. Using the UIPF, the experimental results obtained in the present study were thermodynamically analyzed to determine the activity coefficient of Si at infinite dilution and the 1st- and 2nd-order self-interaction parameters of Si in the Mn-Si melts.

Keywords

Acknowledgement

Grant : 고합금강제조를 위한 고기능 합금철 정련 기술

Supported by : 지식경제부

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