| Autor: |
Mikhailova, G.N., Troitskii, A.V. |
| Zdroj: |
Quantum Electronics; July 31, 2003, Vol. 33 Issue: 7 p621-627, 7p |
| Abstrakt: |
The experimental data on the application of laser radiation to melting YBCO(123) and Bi(2223) high-temperature superconducting ceramics aimed at the improvement of their structure and an increase in the critical current density are systematised. The short-term melting of this ceramics by CO2 laser radiation and the subsequent annealing lead to the formation of a dense fine-grained structure. As a result, the critical current density significantly increases. The best results are obtained for the Bi(2223) ceramics: the critical current density increases by a factor of 40 and 8 at T= 20 K and 77 K, respectively. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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