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Rapid Thermal Processing Of High Temperature Superconducting Fiber

Published online by Cambridge University Press:  28 February 2011

J.W. Halloran ,
M.J. Neal ,
D.S. Ginley ,
E.L. Venturini ,
J.F. Kwak ,
R.J. Baughman ,
M.A. Mitchell ,
B. Morosin ,
S.N. Basu  and
T.E. Mitchell
J.W. Halloran
Affiliation:
CPS Superconductor Corporation,Milford,MA 01757
M.J. Neal
Affiliation:
CPS Superconductor Corporation,Milford,MA 01757
D.S. Ginley
Affiliation:
Sandia National Laboratories,Albuquerque,NM 87185
E.L. Venturini
Affiliation:
Sandia National Laboratories,Albuquerque,NM 87185
J.F. Kwak
Affiliation:
CPS Superconductor Corporation,Milford,MA 01757
R.J. Baughman
Affiliation:
Sandia National Laboratories,Albuquerque,NM 87185
M.A. Mitchell
Affiliation:
Sandia National Laboratories,Albuquerque,NM 87185
B. Morosin
Affiliation:
Sandia National Laboratories,Albuquerque,NM 87185
S.N. Basu
Affiliation:
Los Alamos National Laboratories,Los Alamos,NM 87545
T.E. Mitchell
Affiliation:
Los Alamos National Laboratories,Los Alamos,NM 87545
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Abstract

We report on the rapid thermal processing (RTP) of YBa2Cu3O7 (Y-123) fibers. Unsintered fibers are densified by RTP. We show that fibers which were originally semiconducting and tetragonal before RTP form normal twinned orthorhombic material after processing for 2–4 seconds above 1000°C with a 3 min. cool down in oxygen. They subsequently show Tc to 90K and magnetization indicative of substantially shielding. We present the effects of varying the RTP parameters on the morphology, phase, and superconducting properties of a number of tetragonal and orthorhombic Y-123 fibers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990 , 1003
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

1. Ginley, D.S., Venturini, E.L., Kwak, J.F., Mitchell, M., Baughman, R. J., Halloran, J.W., and Neal, M.J., Physics Review Letters (in press 1990)Google Scholar
2. Ginley, D.S., Venturini, E.L., Kwak, J.F., Baughman, R. J., Bourcier, R.J., Mitchell, M.A., Morosin, B., Halloran, J.W., Neal, M.J., and Capone, D.W., in High Temperature Superconductors: Fundamentals. Properties, and Novel Processing, ed. Narayan, J. et al. Materials Research Society, Symposia Proceedings Volume 196 , (in press 1990)Google Scholar