The black layer underneath the anode of dc-biased silver metaphosphate glass |
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| Authors: | A. Doi H. Morikawa M. Tazawa |
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| Affiliation: | (1) Department of Materials, Nagoya Institute of Technology, Nagoya, 466-8555, Japan;(2) National Institute of Advanced Industrial Science and Technology, Chubu, Nagoya, 463-8687, Japan |
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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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