| Автор | R Zeng |
| Автор | B Ye |
| Автор | J Horvat |
| Автор | Y C Guo |
| Автор | B Zeimetz |
| Автор | X F Yang |
| Автор | T P Beales |
| Автор | H K Liu |
| Автор | S X Dou |
| Дата выпуска | 1998-10-01 |
| dc.description | Ag-sheathed Bi-2223 multifilamentary tapes were prepared with a hot-pressing technique to study its effect on grain connectivity. The critical current density after hot-pressing was significantly enhanced with the maximum increase reached more than double that before. Hot pressing raised the from to for 81-filament tape. However, the critical current density in an applied magnetic field was not improved by hot-pressing. The in a magnetic field of 1 T decreased from 33% of for the original tape to 21% of for the hot-pressed tapes before and after hot pressing. The fraction of strong links was improved from 64% to 73% for the 81-filament tape as a result of hot pressing. Microstructural analysis showed that hot pressing chiefly improved grain connectivity, increased core density, recovered microcracks and reduced secondary phase impurities. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Critical current density significantly enhanced by hot pressing in Bi-2223/Ag multifilamentary tapes |
| Тип | paper |
| DOI | 10.1088/0953-2048/11/10/045 |
| Electronic ISSN | 1361-6668 |
| Print ISSN | 0953-2048 |
| Журнал | Superconductor Science and Technology |
| Том | 11 |
| Первая страница | 1101 |
| Последняя страница | 1104 |
| Выпуск | 10 |
