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Fabrication and Characterization of (Bi,Pb)-Sr-Ca-Cu-0 (2223)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Chudzik, Michael P. Polzin, Bryant J. Thayer, Ryan L. Picciolo, John J. Fisher, Brandon L. Lanagan, Michael |
| Copyright Year | 1997 |
| Abstract | Bulk bars for current lead applications were fabricated from (Bi,Pb)-Sr-Ca-Cu-0 (Bi-2223) for low thermal conductivity and high critical current. Bars measuring 17.8 cm in length were made by uniaxially pressing Bi-2223 powder of controlled (1.7/0.34)223 and (1.8/0.4)223 phase composition. The bulk bars were densified by subjecting them to a schedule of alternate liquid-phase sintering and cold isostatic pressing. Liquidphase sintering temperatures were optimized from differential thermal analysis and microstructure morphology. Phase purity and microstructure were evaluated by X-ray diffraction and scanning electron microscopy. Low-resistance silver contacts were applied to the bars by hot-pressing at 820°C and 3 MPa. Critical current densities = 1000 A/cm2 (critical currents of 750 A at 77 K in self-field conditions) were achieved. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ia601506.us.archive.org/zipview.php?file=10.1109@77.621006.pdf&zip=/3/items/ieee-us-government-works-dir/ieee-us-government-works-dir.zip |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
