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Part 222: sodium conductivity enhancement along domain and grain boundaries nasicon solid electrolytes

Journal Article · · Mater. Res. Bull.; (United States)
OSTI ID:5915018
Bulk, grain, and domain boundary sodium ion conductivity data are presented for nasicon single crystals and ceramics of composition Na/sub 1+x+4y/Zr/sub 2-y/Si/sub x/P/sub 3-x/O/sub 12/ (x=0-3, y=0-0.2). For silicate-rich compositions the ''crystals'' are built out of domains and the conductance of the resulting domain bundaries are shown to determine the macroscopically observed conductivity. Grain boundaries in ceramics behave in a similar way. A structural explanation of the observed phenomena is suggested.
Research Organization:
Max-Planck-Insitut fur Festkorperforschung, Heisenbergstr.1, 7000 Stuttgart 80
OSTI ID:
5915018
Journal Information:
Mater. Res. Bull.; (United States), Journal Name: Mater. Res. Bull.; (United States) Vol. 21:2; ISSN MRBUA
Country of Publication:
United States
Language:
English