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Activities of chromium in molten copper at dilute concentrations by solid-state electrochemical cell

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Abstract

In order to obtain the activities of chromium in molten copper at dilute concentrations (<0.008 chromium mole fractions), liquid copper was brought to equilibrium with molten CaCl2 + Cr2O3 slag saturated with Cr2O3 (s), at temperatures between 1423 and 1573 K, and the equilibrium oxygen partial pressures were measured by means of solid-oxide galvanic cells of the type Mo/Mo + MoO2/ZrO2(MgO)/(Cu + Cr))alloy + Cr2O3 + (CaCl2 + Cr2O3)slag/Mo. The free energy changes for the dissolution of solid chromium in molten copper at infinite dilution referred to 1 wt pct were determined as Cr (s) = Cr(1 wt pct, in Cu) and ΔG° = + 97,000 + 73.3(T/K) ± 2,000 J mol−1.

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References

  1. D.J. Chakrabarti and D.E. Laughlin:Bull. Alloy Phase Diagrams, 1984, vol. 5 (1), pp. 59–68.

    Article  CAS  Google Scholar 

  2. M. Iwase, N. Yamada, K. Nishida, and E. Ichise:Trans. Iron. Steel. Soc. AIME, 1984, vol. 4, pp. 69–75.

    CAS  Google Scholar 

  3. M. Hansen and K. Anderko:Constitution of Binary Alloys, 2nd ed., McGraw-Hill, New York, NY, 1958.

    Google Scholar 

  4. K.T. Jacob and J.H.E. Jeffes:Trans. Inst. Min. Metall., Sect. C, 1971, vol. 80 (9), pp. C181-C189.

    Google Scholar 

  5. H. Schmalzried:Z. Elektrochem., 1962, vol. 66 (7), pp. 572–76.

    CAS  Google Scholar 

  6. M. Iwase, E. Ichise, M. Takeuchi, and T. Yamasaki:Trans. Jpn. Inst. Met., 1984, vol. 25 (2), pp. 43–52.

    CAS  Google Scholar 

  7. M. Iwase, M. Yasuda, and T. Mori:Electrochim. Acta, 1979, vol. 1 (3), pp. 261–66.

    Article  Google Scholar 

  8. Y. Jeaninn, C. Mannerskantz, and F.D. Richardson:Trans. AIME, 1963, vol. 227, p. 300.

    Google Scholar 

  9. F.M. Mazandarany and R.D. Pehlke:J. Electrochem. Soc., 1974, vol. 121, p. 771.

    Article  Google Scholar 

  10. K.T. Jacob:J. Electrochem. Soc., 1977, vol. 124, p. 1927.

    Article  Google Scholar 

  11. M. Iwase and H. Fujiwara:Suiyou-kwai-Shi (in Japanese), 1990, vol. 21, p. 247.

    CAS  Google Scholar 

  12. K. Ono, S. Nishi, and T. Oishi:Trans. Jpn. Inst. Met., 1984, vol. 25(11), pp. 810–14.

    CAS  Google Scholar 

  13. L. Timberg and J.M. Toguri:J. Chem. Thermodyn., 1982, vol. 14, pp. 193–99.

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. Department of Metallurgy, Kyoto University, 606, Kyoto, Japan

    T. K. Inouye (Graduate Student), H. Fujiwara (Graduate Student) & M. Iwase (Associate Professor)

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  1. T. K. Inouye
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  2. H. Fujiwara
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  3. M. Iwase
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Inouye, T.K., Fujiwara, H. & Iwase, M. Activities of chromium in molten copper at dilute concentrations by solid-state electrochemical cell. Metall Trans B 22, 475–480 (1991). https://doi.org/10.1007/BF02654285

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