Consolidation of Bi-Sr-Ca-Cu-O superconductors by the shock-loading method
Autor: | H. Faqir, Kiichi Okuda, Shuichi Kawamata, Yasuhiko Syono, Masae Kikuchi, Y. Muraoka, Kiyoto Fukuoka |
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Rok vydání: | 2000 |
Předmět: | |
Zdroj: | Superconductor Science and Technology. 13:1151-1154 |
ISSN: | 1361-6668 0953-2048 |
Popis: | Shock compaction experiments were carried out for Bi2223 to prepare a dense, oriented bulk specimen. The shocked specimen exhibited a high degree of crystallographic orientation and a high density, above 96%. The optimal condition of the crystallographic orientation was attained at a shock pressure of 5 GPa and at annealing temperatures between 750 and 800 °C. The post annealing of a specimen shocked at 5 GPa was effective in increasing AM, indicating the introduction of pinning sites. The magnetic torque measurements showed that a high degree of orientation was attained and many pinning centres were induced by the shock loading. |
Databáze: | OpenAIRE |
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