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U.S. Department of Energy
Office of Scientific and Technical Information

Electrolytic degradation of lithia-stabilized. beta. ''-alumina. Technical progress report, July 1, 1980-May 15, 1981

Technical Report ·
OSTI ID:6403287
Progress is described in the following areas; (1) effect of Se and Pb on the sodium/..beta..''/ sodium cell studies; (2) transformation toughening of ..beta..''-alumina with small additions of unstabilized zirconia; (3) theoretical development of the model; (4) determination of current and potential distribution by the conformal transformation method; (5) determination of critical current density; and (6) fabrication of Ag-..beta..''-alumina. Important findings include (1) additions of selenium to Na/..beta..''alumina/Na cells drastically lowers the cell resistance and its temperature dependency is also altered; (2) ..beta..''-alumina can be significantly strengthened by the addition of ZrO/sub 2/; (3) experimentally determined i/sub Cr/ is in the range of 10 to 20 amps/cm/sup 2/; and (4) current concentration factor calculations have shown that the cracks in the center of a nonwetted area could be deleterious. Experimental evidence has been found. (WHK)
Research Organization:
Utah Univ., Salt Lake City (USA). Dept. of Materials Science and Engineering
DOE Contract Number:
AS02-77ER04451
OSTI ID:
6403287
Report Number(s):
UTEC-81044; ON: DE81025052
Country of Publication:
United States
Language:
English