| 摘要 |
PURPOSE:To produce a superconductor having suppressed eccentricity and shrinkage by compression molding a powdery mixture composed of an oxide superconducting substance and calcining the product in two steps. CONSTITUTION:A powdery mixture composed of an oxide superconducting substance such as Y2O3, BaCO3 and CuO is compression molded into a rod, cylinder or square column, calcined in oxygen at 850-920 deg.C for about 2hr and then calcined at 920-960 deg.C. |
