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Current characteristics of Bi1.7Pb0.3Sr2Ca2Cu5Oy superconductors prepared by the cast annealing method

✍ Scribed by Y.G. Wang; J.S. Wang; N.L. Wang; G.C. Han; X.P. Jiao

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
223 KB
Volume
30
Category
Article
ISSN
0011-2275

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✦ Synopsis

Superconducting materials of nominal composition Bil.7Pb0.3Sr2Ca2CusO r were prepared by the cast annealing method. Electromagnetic measurements and X-ray powder diffraction patterns from the samples show that the major phase of the oxide superconductor is the superconducting phase at 110 K, with zero resistance at 107 K and a critical current density of 247 A cm-~ at 77 K. The electromagnetic characteristics indicate that the superconducting materials possess the properties of typical granular superconductors with weak links and weak pinning forces producing flux.

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