Title :
Promoting effects of steam on the sintering process of YBCO ceramic superconductors
Author :
Chen, S.T. ; Li, X.S. ; Yin, F.C. ; Yao, X.
Author_Institution :
Xi´´an Jiaotong Univ., China
fDate :
3/1/1989 12:00:00 AM
Abstract :
The effects of steam on the sintering of Y-Ba-Cu-O (YBCO) ceramic superconductors are reported. It has been found that steam is favourable for promoting the sintering of YBCO ceramics and increasing the bulk density of the material as well as the critical-current density. The linear contraction coefficient increases with increasing steam pressure. The samples of YBCO made by this method have shown good resistance against H2O and CO2. The reason why steam promotes the sintering process is explained
Keywords :
barium compounds; critical current density (superconductivity); density of solids; high-temperature superconductors; sintering; yttrium compounds; CO2 resistance; H2O; Y-Ba-Cu-O; critical-current density; high temperature superconductor; linear contraction coefficient; sintering; steam effects; Ceramics; Electrical resistance measurement; Furnaces; Mercury (metals); Powders; Scanning electron microscopy; Superconducting materials; Superconductivity; Water; Yttrium barium copper oxide;
Journal_Title :
Magnetics, IEEE Transactions on
