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
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