Abstract
The magnetization of dense MgB2/Ta/Cu wires prepared by the powder-in-tube method is measured by a SQUID magnetometer. The results indicate that the critical temperature of MgB2/Ta/Cu is around 38.4 K with a sharp transition width of 0.6 K. The MgB2/Ta/Cu wire shows a strong flux pinning and the critical current density is higher than 105 A/cm2 (5 K, self-field) and 104 A/cm2 (20 K, 1 T). Also, the irreversibility field of the sample reaches 6.6 T at 5 K.
Original language | English |
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Pages (from-to) | 251-252 |
Number of pages | 2 |
Journal | Chinese Science Bulletin |
Volume | 47 |
Issue number | 3 |
DOIs | |
State | Published - 2002 |
Externally published | Yes |
Keywords
- Critical current density
- MgB
- Powder-in-tube process