Abstract
Iron-clad MgB 2 superconducting wires and tapes were fabricated using the standard powder-in-tube (PIT) method. The starting precursor was ultra-fine Mg and B mixture powder prepared by high-energy ball milling. Very good grain connections as well as grain refinement were obtained. Under 1.5 Tesla external magnetic field, J c of MgB 2 tape is 1.07 × 10 5 A/cm 2 and 6.54 × 10 3 A/cm 2 at 20 K and 30 K, respectively. An extrapolation to zero field at 20 K gives a J c of 3.0 × 10 5 A/cm 2. A solenoid with a diameter of 12 mm and 12 turns made from MgB 2 wires demonstrated the potential for large-scale applications. Under 1 Tesla, the critical current of this solenoid is 159 A and 110 A at 20 K and 30 K, respectively.
| Original language | English (US) |
|---|---|
| Pages | 75-82 |
| Number of pages | 8 |
| State | Published - Jun 14 2004 |
| Event | Fabrication of Long-Length and Bulk High-Temperature Superconductors - Nashville, TN., United States Duration: Apr 27 2003 → Apr 30 2003 |
Conference
| Conference | Fabrication of Long-Length and Bulk High-Temperature Superconductors |
|---|---|
| Country | United States |
| City | Nashville, TN. |
| Period | 4/27/03 → 4/30/03 |
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry
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Fang, H., Padmanabhan, S., Zhou, Y. X., Putman, P. T., & Salama, K. (2004). High transport properties in iron-clad MGB 2 wires and tapes. 75-82. Paper presented at Fabrication of Long-Length and Bulk High-Temperature Superconductors, Nashville, TN., United States.