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Phase diagram study for the CaO-SiO2-Cr2O3-5 mass.%MgO-10 mass.%MnO system
- Authors
- Park, Joo Hyun; Jung, In-Ho; Lee, Sang-Beom
- Issue Date
- Aug-2009
- Publisher
- 대한금속·재료학회
- Keywords
- phase diagram; oxygen partial pressure; slag; stainless steelmaking; thermodynamics
- Citation
- Metals and Materials International, v.15, no.4, pp.677 - 681
- Indexed
- SCOPUS
KCI
- Journal Title
- Metals and Materials International
- Volume
- 15
- Number
- 4
- Start Page
- 677
- End Page
- 681
- ISSN
- 1598-9623
- Abstract
- The phase diagram of the CaO-SiO2-CrOx-MgO-MnO system at moderately reducing oxygen partial pressure was calculated using a commercial thermochemical program and compared with the phase analysis for converter slags taken from the stainless steelmaking process. It was found that a (Mn,Mg)Cr2O4 solid solution and Ca2SiO4 phase are in equilibrium with the oxidation slags after the oxygen blowing period, which is consistent with thermodynamic calculations. Furthermore, it could be proposed that the thermodynamic properties of a MgCr2O4-MnCr2O4 binary spinel make it close to an ideal solution.
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Related Researcher
- Park, Joo Hyun
- ERICA 공학대학 (DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING)