| 摘要 |
PURPOSE:To provide a superconductive wire having high critical current density by filling so that superconductive ceramic powder will be in a specific composition. CONSTITUTION:In a superconductive wire in which an Ag sheath 1 is filled with superconductive ceramic powder 3, a compressed orientation layer 2 in which the C axis of the crystal of the powder is oriented perpendicularly to the longitudinal direction of the superconductive wire shall exist over the thickness of 5-150mum. Less than 5mum of the thickness of this compressed orientation layer 2 admits only a critical current density Jc of 10<3>A/cm<2>, which should increase with greater layer thickness, but a layer 2 obtained by ordinary rolling or press has a thickness limit of 150mum. This allows simple aquisition of a superconductive wire having high critical current density. |
