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Transient oxidation protection of dilute Pb-Ca and Pb-Ba melts

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Abstract

The oxygen activity of liquid lead was measured using a calcia-stabilized zirconia electrolyte cell inserted into the melt. The oxygen activity was monitored as small additions of Ca or Ba were made to the melt. The oxygen activity dropped rapidly after the addition, and the melt became oxidation-resistant as the oxygen activity increased back to the pre-addition level. The oxidation resistance was attributed to a thin PbO layer, containing a high density of imperfections, on the melt surface.

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  1. Richard A. Perkins

    Present address: Oak Ridge National Laboratory, Oak Ridge, Tennessee

Authors and Affiliations

  1. Globe-Union Inc., Milwaukee, Wisconsin

    Richard A. Perkins

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  1. Richard A. Perkins
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Perkins, R.A. Transient oxidation protection of dilute Pb-Ca and Pb-Ba melts. Oxid Met 9, 367–378 (1975). https://doi.org/10.1007/BF00613536

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  • DOI: https://doi.org/10.1007/BF00613536

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