| 摘要 |
PURPOSE:To enable production of a superconductive material of oxide type having large critical electric current density, by connecting superconductive material particles of oxide type through an electrically conductive substance. CONSTITUTION:Superconductive material particles of oxide type are mixed with electrically conductive metal powder while stirring and the mixed powder is molded under pressure or, after the molding, may be heat-treated to give a superconductive material of oxide type. Or the mixed powder is packed into a metallic pipe and mechanically processed to reduce section area or, after the mechanical processing, may be heat-treated to produce the superconductive material of oxide type. The superconductive material of oxide type thus obtained has a sectional structure shown by the figure and superconductive material particles 1 of oxide type are mutually connected by the electrically conductive material 2. The superconductive material of oxide type having various shapes can be readily obtained by the above-mentioned production methods. |
