Abstract
Fabrication of metal-shielded YBa2Cu3Ox superconductive wires provides a possible route to improve the poor mechanical properties and the low critical current densities associated with the ceramic nature of high-Tc superconductive oxide materials. However, results show that wires produced by the powder-in-tube method have low critical current densities and a wide superconducting transition range. A possible reason for these phenomena is the presence of a considerable amount of oxygen-deficient phase in the wire core due to insufficient oxygen diffusion through the metallic shield in the final annealing process. Silver oxide (Ag2O) was introduced as an in-situ oxygen donor to stabilize the oxygen stoichiometry of the core material. Traditional powder and mechanical metallurgy methods have been used to fabricate these metal-shielded YBa2Cu3Ox superconductive wires for bulk electricity applications.
Original language | English |
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Pages (from-to) | 31-33 |
Number of pages | 3 |
Journal | JOM |
Volume | 41 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1989 Apr 1 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Engineering(all)