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The kinetics of deoxidation of copper and copper alloys by carbon monoxide

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Abstract

The kinetics of deoxidation of molten copper, Cu-50 pct Ag and Cu-60 pct Sn alloys were studied. The solid electrolyte EMF technique was used to measure the oxygen content as a function of time. The gas was introduced as bubbles emitted from various-sized orifices placed in the melt. Liquid phase mass transfer control is implied by the results for deoxidation in the range 0.05 pct oxygen down to 0.005 pct, where the chemical reaction rate is inferred to become significant in controlling the overall rate. Hughmark’s mass transfer correlation is tested and found to be useful in predicting the liquid phase mass transfer coefficient.

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Authors and Affiliations

  1. Regional Engineering College, Rourkela-8, Orissa, India

    Chitta R. Nanda (Assistant Professor of Metallurgy)

  2. University of Illinois at Chicago Circle, Ill., Chicago

    Gordon H. Geiger (Associate Professor of Metallurgical Engineering)

Authors
  1. Chitta R. Nanda
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  2. Gordon H. Geiger
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Additional information

This paper is based on a portion of the Dissertation submitted by C. R. NANDA to the Graduate School of the University of Wisconsin in partial filfillment of the requirements for the Ph.D, degree. The research was conducted while the authors were, respectively, Research Assistant and Associate Professor in the Department of Minerals and Metals Engineering, University of Wisconsin, Madison, Wis.

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Nanda, C.R., Geiger, G.H. The kinetics of deoxidation of copper and copper alloys by carbon monoxide. Metall Trans 2, 1101–1106 (1971). https://doi.org/10.1007/BF02664242

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  • DOI: https://doi.org/10.1007/BF02664242

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