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Wetting characteristics of sodium on β″-alumina and on nasicon

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Abstract

The sessile drop technique was used to determine the wetting characteristics of liquid sodium on β″-alumina and nasicon (Na3Zr2Si2PO12). The effects of moisture and temperature were studied using the wetting experiments. A range of contact angles (from 0 to 160°) were observed. The samples exposed to moisture exhibited poor wetting. The fact that good wetting is a prerequisite for improved cell performance was demonstrated via Na ¦β″-alumina¦ Na cell tests. Cells baked out in a vacuum passed in excess of 1100 Ah cm−2 at 4 A cm−2 current density without any degradation. Unbaked cells under similar conditions failed under 200 Ah cm−2.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Univeristy of Utah, 84112, Salt Lake City, Utah, USA

    L. Viswanathan & A. V. Virkar

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  1. L. Viswanathan
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  2. A. V. Virkar
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Viswanathan, L., Virkar, A.V. Wetting characteristics of sodium on β″-alumina and on nasicon. J Mater Sci 17, 753–759 (1982). https://doi.org/10.1007/BF00540372

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  • DOI: https://doi.org/10.1007/BF00540372

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