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Korean Journal of Chemical Engineering, Vol.12, No.5, 563-566, 1995
CORROSION BEHAVIOR OF HIGH-TEMPERATURE SUPERCONDUCTOR YBa2Cu3-YAgyO7-x IN THE PRESENCE OF WATER
Because of the presence of water vapor, YBa2Cu3-YAgyO7-x degrades easily in the atmosphere and thus very difficult to put it to practical use. When Cu is partially substituted with Ag, however, there is not much a decrease in the critical temperature (Tc):Tc is 89 K compared with 91 K without substitution. Moreover, partial substitution of Ag increases density, hardness, and superconducting particle size and above all improves considerably its stability in water. In this study YBa2Cu3-YAgyO7-x and YBa2Cu3-YAgyO7-x as a result of a partial substitution of Ag for Cu were synthesized by pyrophoric method. We investigated their stabilities in water by XRD, SEM, and EPMA after immersing samples in distilled water for 3 hours. We can see that YBa2Cu3-YAgyO7-x was the largest particle size and anticorrosion behavior.
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[Cited By]
- Kim YS, Lee YM, Yang SW, Kim YS, Park JS, Shin HS, HWAHAK KONGHAK, 37(6), 930, 1999
- Park JS, Kim YS, Yang SW, Cho IJ, kim CY, Shin HS, Korean Journal of Chemical Engineering, 15(3), 304, 1998
- Kim YS, Yang SW, Park JS, Shin HS, Journal of the Korean Industrial and Engineering Chemistry, 7(4), 639, 1996
- Kim YS, Shin HS, Korean Journal of Chemical Engineering, 20(6), 1183, 2003
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