| Автор | D-W Yuan |
| Автор | W J Majer |
| Автор | T L Francavilla |
| Дата выпуска | 2000-03-01 |
| dc.description | The powder-in-tube (PIT) process has been successfully used to make long lengths of Ag-sheathed oxide superconductors. A modified PIT approach is proposed to fabricate conductors with laminated Bi-2212 configurations. Ag/Bi-2212 tapes consisting of seven laminae were produced with various thicknesses ranging from 0.38 to 0.25 mm. The use of a turkshead was found to be beneficial, yielding tapes with good dimensional integrity and consistency. Critical current density (J<sub>c</sub> ) values greater than 10<sup>5</sup> A cm<sup>-2</sup> (0.01 T and B tape surface) have been attained for tapes of different thicknesses. Nonetheless, J<sub>c</sub> was found to be related to the average thickness of individual Bi-2212 lamina. It is believed that excessive cold working accounts for the decrease in J<sub>c</sub> with decreasing size below a threshold value. The enhancement of J<sub>c</sub> is attributed to the high Bi-2212 grain alignment along the Ag-oxide interfaces and uniform dimensions within the laminate conductors. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Fabrication of laminated Bi-2212/Ag multifilamentary tape |
| Тип | paper |
| DOI | 10.1088/0953-2048/13/3/305 |
| Electronic ISSN | 1361-6668 |
| Print ISSN | 0953-2048 |
| Журнал | Superconductor Science and Technology |
| Том | 13 |
| Первая страница | 287 |
| Последняя страница | 290 |
| Выпуск | 3 |
