Abstract
YBa2Cu3O7-x compounds were extruded into long wires with the diameter of 1 mm after sintering. The sintered wires were subsequently zone melted to develop a highly textured microstructure. Magnetization experiments at 77 K indicated a Jc value of 1×105 A/cm2 at 1 T. Transport measurements at 77 K showed a greatly enhanced field dependence of the critical current density. Transmission electron microscopy revealed an important grain-boundary feature which eliminated the weak-link behavior. Large amounts of dislocations have also been found in the zone-melted sample which may contribute to flux pinning in the system.
Original language | English (US) |
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Pages (from-to) | 228-232 |
Number of pages | 5 |
Journal | Journal of Applied Physics |
Volume | 68 |
Issue number | 1 |
DOIs | |
State | Published - 1990 |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)