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The black layer underneath the anode of dc-biased silver metaphosphate glass

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Abstract

The black layer was generated underneath the anode when a gold-electroded silver metaphosphate glass, a silver-ion conductor, was dc biased with 500 V/cm or 250 V/cm at 140°C . It was concluded that this layer corresponded to the silver-depleted region formed by conduction of the silver ions towards the cathode. The blackening was ascribed to be due to the shortened Ag-O distance, caused by structural rearrangement within the region into the P2O5-like structure on biasing.

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Authors and Affiliations

  1. Department of Materials, Nagoya Institute of Technology, Nagoya, 466-8555, Japan

    A. Doi & H. Morikawa

  2. National Institute of Advanced Industrial Science and Technology, Chubu, Nagoya, 463-8687, Japan

    M. Tazawa

Authors
  1. A. Doi
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  2. H. Morikawa
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  3. M. Tazawa
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Doi, A., Morikawa, H. & Tazawa, M. The black layer underneath the anode of dc-biased silver metaphosphate glass. Journal of Materials Science 37, 3867–3874 (2002). https://doi.org/10.1023/A:1019643103186

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