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Diffusivity and solubility of oxygen in solid copper using potentiostatic and potentiometric techniques

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Abstract

The diffusivity and solubility of oxygen in solid copper have been determined in the temperature range 700 to 1030 °C using potentiostatic and potentiometric techniques. The results are summarized by the following equations: CuDo = +0.421.16-0.31 × 10−2 exp(−67300 ± 3000/RT) cm2 per second; sNo = 154 exp(−149600/RT)atom fraction of oxygen where R is in joules/degree/mole. The experimentally determined value of the pre-exponential factor in the diffusivity equation is found to be consistent with Zener’s model for an interstitial diffusion mechanism.

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Author notes

  1. V. B. Tare (Professor)

    Present address: Center for Solid State Science, Arizona State University, 85287, Tempe, AZ

Authors and Affiliations

  1. Research and Development Steel Authority of India, Ranchi, India

    M. L. Narula (Research Engineer)

  2. Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA

    W. L. Worrell (Professor)

Authors
  1. M. L. Narula
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  2. V. B. Tare
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  3. W. L. Worrell
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on leave of absence from the Banaras Hindu University, India

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Narula, M.L., Tare, V.B. & Worrell, W.L. Diffusivity and solubility of oxygen in solid copper using potentiostatic and potentiometric techniques. Metall Trans B 14, 673–677 (1983). https://doi.org/10.1007/BF02653953

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  • DOI: https://doi.org/10.1007/BF02653953

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