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In Situ observation of the effect of temperature on Cu2O scale morphology

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Abstract

The effect of temperature on copper oxide scale morphology was studied during in situ oxidation of OFHC copper in a hot-stage environmental scanning electron microscope (HSESEM). Cuprous oxide scales grown at low temperature [0.2Tm(Cu2O)] and intermediate temperatures 0.6–0.7Tm(Cu2O)] were found to be crystallographically oriented. At intermediate temperatures, scales exhibited nonplanar features such as ridges and growth pyramids. At high temperatures [T> 0.8Tm(Cu2O)], scales had planar morphologies and a few dislocation growth pits. Downquenching and upquenching of the Cu2O scales from steady-state oxidation temperatures induced morphological changes such as cavity formation and surface reconstruction.

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Author notes

  1. Bülent Önay

    Present address: Research Laboratory of Engineering Materials, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, 227, Yokohama, Japan

Authors and Affiliations

  1. Department of Metallurgical Engineering, Ohio State University, 43210, Columbus, Ohio

    Robert A. Rapp

Authors
  1. Bülent Önay
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  2. Robert A. Rapp
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Önay, B., Rapp, R.A. In Situ observation of the effect of temperature on Cu2O scale morphology. Oxid Met 29, 473–486 (1988). https://doi.org/10.1007/BF00666846

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  • DOI: https://doi.org/10.1007/BF00666846

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