| 摘要 |
<p>High temperature superconductor components are produced from expanded metal and porous materials (10, 16, 34, 40, 42) that are impregnated with a powder of superconducting material or are dip coated with a slurry of such materials, and are further worked and treated. The figure shows such a component. In modifying powder-in-tube techniques, a sheath that is conventionally made of solid silver or continuous foil, is replaced by a sheath of porous silver having a foam-like construction. As little as five percent by volume of the sheath comprises silver; the remaining volume being void. Additionally, porous silver may be formed into components such as disks and shields (36).</p> |
