Loading...
Please wait, while we are loading the content...
Similar Documents
Enhancing the engineering J/sub c/ of Bi-2223 multifilamentary tapes by two-axial rolling and periodic pressing
| Content Provider | Semantic Scholar |
|---|---|
| Author | Huang, Y. B. Marti, Frank Witz, Grégoire Passerini, Reynald Flukiger, René Grasso, Gianni |
| Copyright Year | 1999 |
| Abstract | Bi-2223 multifilamentary tapes with a filling factor from 20 to 51% have been produced by a modified Powder-In-Tube method, where a two-axial rolling method is used to replace the standard drawing process. Because the two-axial rolling process does not apply tensile force during wire fabrication and every filament receives a very similar reduction during the deformation processing of the wire into a tape, the size homogeneity of filaments can be significantly improved for tapes with high filling factor. Combining this with a periodic pressing process, the engineering critical current density has been increased from 4 to 8 kA/cm/sup 2/ (77 K, 0 T) for tapes with a filling factor of 35%. The effect of deformation and heat-treatment conditions on the microstructure and transport properties has been found to be quite different in tapes with high filling factor. |
| Starting Page | 2722 |
| Ending Page | 2725 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.1109/77.785048 |
| Volume Number | 9 |
| Alternate Webpage(s) | http://dpmc.unige.ch/gr_flukiger/frank/MWB06.pdf |
| Journal | IEEE Transactions on Applied Superconductivity |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
