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

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}",

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

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journal = "Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science",

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T1 - The thermodynamic behavior of copper in the CaO-B 2O 3 and BaO-B 2O 3 slag system

AU - Jang, Dea Young

AU - Min, Dong Joon

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

Abstract

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