| 摘要 |
PURPOSE:To make a ceramics show superconductivity at high temperature by blending a compound oxide having a superconducting composition of specific three kinds of oxides with a radioactive element compound comprising the same element to form perovskite crystal structure. CONSTITUTION:(A) A metallic compound oxide composition shown by the formula LaBaSrCu3O7-x, (B) a metallic compound oxide composition shown by the formula BiBaSrCu3O7-x and (C) BiSr2Cu3O7-x (x=1-6 integer) are blended with >=0.1% radioactive element comprising the same element as that of the raw materials of the compositions such as Sr<90>, respectively and burnt under high pressure at high temperature to give ceramics of perovskite crystal structure showing superconductivity. |
