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Preparation of Bi-2212/Ag Tapes by Electrodeposition

Published online by Cambridge University Press:  18 March 2011

Jun Chen
Affiliation:
National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401 Department of Physics, Boston College, Chestnut Hill, MA 02467
Raghu Bhattachary
Affiliation:
National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401
Ramakrishnan Padmanabhanl
Affiliation:
National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401 Department of Physics, University of Colorado at Boulder, Boulder, CO 80309
Richard Blaugher
Affiliation:
National Renewable Energy Laboratory, 1617 Cole Blvd, Golden, CO 80401
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Abstract

Bi-2212 precursor films were deposited on both sides of polycrystalline Ag tapes by electrodeposition. After a melt-solidification process in flowing oxygen atmosphere, c-axis textured Bi-2212 films with Jc( 0T, 4.2K) up to 820,000 A/ cm2 were obtained. A post annealing in flowing nitrogen at 475°C for 25 minutes increased Tc from 72 K to 92 K, and Jc(H=0T) > 17, 000A/ cm2 was observed at 60 K. No scaling behavior of the pinning force was observed, indicating more than one pinning mechanism in thus obtained Bi-2212/Ag tapes.

Type
Research Article
Copyright
Copyright © Materials Research Society 2002

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References

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