| 摘要 |
PURPOSE:To prevent the deformation, bulging and oxidation of a metallic pipe and to avoid a decrease in superconductivity at the time of sintering an oxide superconductor powder packed in the pipe to produce a superconductor by specifying the pipe. CONSTITUTION:A stainless steel pipe 1 with the inner and outer periperies coated with an oxidation-resistant metal 12 such as silver, gold and platinum is prepared. The powder 2 of an oxide superconductor is packed in the pipe 1, and the packed body is sintered to produce a superconductor. By this method, even if the unreacted component is decomposed in sintering to liberate the gas, the pipe 1 is not deformed or bulged, and a superconductor excellent in adhesion to the pipe 1 is obtained. The oxidation of the pipe 1 and the deterioration in superconductivity are prevented. In addition, the plural packed bodies are placed in a stainless steel pipe coated in the same way as the pipe 1, and the charged body is sintered to obtain a multicore superconductor. |
