Ms. Wu et Tt. Fang, FORMATION MECHANISM OF MOO3-DOPED YSR2CU3O-GAMMA USING THE CITRATE PROCESS, Journal of the American Ceramic Society, 78(4), 1995, pp. 1111-1114
The formation mechanism of the synthesis of MoO3-doped YSr2Cu3Oy powde
rs using the citrate process was investigated. It was shown that the p
recursor phase (Sr1-xYx)(14)Cu24O41 played a crucial role in forming t
he superconducting phase, It was found that the precursor phase (Sr1-x
Yx)(14)Cu24O41 interacted with water and decomposed when it was heavil
y milled and heated.