The Effects of BaF2 Addition on Melt-Processed YBa2Cu3O7-x Superconductors
The effects of BaF2 on thermal behavior and microstructure of melt-processed YBCO superconductors have been investigated. The differential thermal analysis (DTA) results indicated that the peritectic decomposition temperature of YBCO precursor powder was lowered when BaF2 was added (from 1020 to 976). The peritectic decomposition temperature was lowest at the content of 5 wt.% BaF2, and the variation of melting temperature was not significant above 5 wt.% BaF2. The microstructures of the doped samples have been observed by scanning electron microscopy (SEM). The results showed that the of BaF2 microstructure .
Yafang Han et al.
J. Q. Feng et al., "The Effects of BaF2 Addition on Melt-Processed YBa2Cu3O7-x Superconductors", Materials Science Forum, Vols. 546-549, pp. 2075-2078, 2007