The thermodynamic behavior of copper in the CaO-B 2O 3 and BaO-B 2O 3 slag system

Dea Young Jang; Dong Joon Min

doi:10.1007/s11663-011-9549-7

The thermodynamic behavior of copper in the CaO-B ₂O ₃ and BaO-B ₂O ₃ slag system

Dea Young Jang, Dong Joon Min

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

The Cu solubility was measured in the CaO-B ₂O ₃ and BaO-B ₂O ₃ slag systems to understand the dissolution mechanism of Cu in the slags. The Cu solubility had a linear relationship with oxygen partial pressure in the CaO-B ₂O ₃ slag system, which corresponds with previous studies. Also, the Cu solubilities in slag decreased with increasing the slag basicity, which value of slope was close to -0.5 in logarithmic form. From the results of experiment, the Cu dissolution mechanism established as follows: To compensate the effects of oxygen partial pressure and chemical potential of Cu in alloy on the Cu solubility of slag, the concept of cuprous capacity was suggested as follows: The cuprous capacity showed decreasing tendency as the slag basicity increased in the B ₂O ₃ bearing slags as well as in CaO-SiO ₂-Al ₂O ₃(Satd.) and FeO-Fe ₂O ₃-SiO ₂(Satd.) slag systems. It is suggested that the proposed dissolution mechanism could be available in various slag systems.

Original language	English
Pages (from-to)	1144-1149
Number of pages	6
Journal	Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
Volume	42
Issue number	6
DOIs	https://doi.org/10.1007/s11663-011-9549-7
Publication status	Published - 2011 Dec

Bibliographical note

Funding Information:
This work was funded by the fourth stage of Brain Korea 21. Special appreciation is warranted to Prof. I. Sohn of Yonsei University for helpful discussions.

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

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title = "The thermodynamic behavior of copper in the CaO-B 2O 3 and BaO-B 2O 3 slag system",

abstract = "The Cu solubility was measured in the CaO-B 2O 3 and BaO-B 2O 3 slag systems to understand the dissolution mechanism of Cu in the slags. The Cu solubility had a linear relationship with oxygen partial pressure in the CaO-B 2O 3 slag system, which corresponds with previous studies. Also, the Cu solubilities in slag decreased with increasing the slag basicity, which value of slope was close to -0.5 in logarithmic form. From the results of experiment, the Cu dissolution mechanism established as follows: To compensate the effects of oxygen partial pressure and chemical potential of Cu in alloy on the Cu solubility of slag, the concept of cuprous capacity was suggested as follows: The cuprous capacity showed decreasing tendency as the slag basicity increased in the B 2O 3 bearing slags as well as in CaO-SiO 2-Al 2O 3(Satd.) and FeO-Fe 2O 3-SiO 2(Satd.) slag systems. It is suggested that the proposed dissolution mechanism could be available in various slag systems.",

author = "Jang, {Dea Young} and Min, {Dong Joon}",

note = "Funding Information: This work was funded by the fourth stage of Brain Korea 21. Special appreciation is warranted to Prof. I. Sohn of Yonsei University for helpful discussions.",

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doi = "10.1007/s11663-011-9549-7",

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AU - Jang, Dea Young

AU - Min, Dong Joon

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PY - 2011/12

Y1 - 2011/12

N2 - The Cu solubility was measured in the CaO-B 2O 3 and BaO-B 2O 3 slag systems to understand the dissolution mechanism of Cu in the slags. The Cu solubility had a linear relationship with oxygen partial pressure in the CaO-B 2O 3 slag system, which corresponds with previous studies. Also, the Cu solubilities in slag decreased with increasing the slag basicity, which value of slope was close to -0.5 in logarithmic form. From the results of experiment, the Cu dissolution mechanism established as follows: To compensate the effects of oxygen partial pressure and chemical potential of Cu in alloy on the Cu solubility of slag, the concept of cuprous capacity was suggested as follows: The cuprous capacity showed decreasing tendency as the slag basicity increased in the B 2O 3 bearing slags as well as in CaO-SiO 2-Al 2O 3(Satd.) and FeO-Fe 2O 3-SiO 2(Satd.) slag systems. It is suggested that the proposed dissolution mechanism could be available in various slag systems.

AB - The Cu solubility was measured in the CaO-B 2O 3 and BaO-B 2O 3 slag systems to understand the dissolution mechanism of Cu in the slags. The Cu solubility had a linear relationship with oxygen partial pressure in the CaO-B 2O 3 slag system, which corresponds with previous studies. Also, the Cu solubilities in slag decreased with increasing the slag basicity, which value of slope was close to -0.5 in logarithmic form. From the results of experiment, the Cu dissolution mechanism established as follows: To compensate the effects of oxygen partial pressure and chemical potential of Cu in alloy on the Cu solubility of slag, the concept of cuprous capacity was suggested as follows: The cuprous capacity showed decreasing tendency as the slag basicity increased in the B 2O 3 bearing slags as well as in CaO-SiO 2-Al 2O 3(Satd.) and FeO-Fe 2O 3-SiO 2(Satd.) slag systems. It is suggested that the proposed dissolution mechanism could be available in various slag systems.

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