Abstract
The ingredients of Y2O3, BaCO3, and CuO were treated by a hybridization milling apparatus, pressed at 500kg/cm2 and calcined at 925°C for 2 days, followed by annealing at 500'C for 7 days. The milling effects on the samples were inferred from the analysis of the X-ray peaks and SEM observation. It has been clarified that the ingredient materials is very well mixed by milling for 20 minutes, so that the calcined sample may be very good superconductor.
