A cadmium analogue of the mercury system with nominal composition CdBa
2(Ca1-xYx)Cu2Oy has been synthesized. The x=0 samples contain about 12
voL% of the 1212 phase but are not superconducting. The x=0.3 samples
are superconducting at T-on=103 K. The EDX analysis of 18 microcrysta
ls shows a broad cationic distribution of the different components. Th
e observed broad superconducting transition is attributed to the vario
us T-c of the different microcrystals.