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LFZ growth of (Bi, Pb)–Sr–Ca–Cu–O superconducting fibers

Published online by Cambridge University Press:  31 January 2011

G.F. de la Fuente ,
R. Navarro ,
F. Lera ,
C. Rillo ,
J. Bartolomé ,
A. Badía ,
D. Beltrán ,
R. Ibáñez ,
A. Beltrán  and
E. Sinn
G.F. de la Fuente
Affiliation:
Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009-Zaragoza, Spain
R. Navarro
Affiliation:
Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009-Zaragoza, Spain
F. Lera
Affiliation:
Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009-Zaragoza, Spain
C. Rillo
Affiliation:
Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009-Zaragoza, Spain
J. Bartolomé
Affiliation:
Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009-Zaragoza, Spain
A. Badía
Affiliation:
Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009-Zaragoza, Spain
D. Beltrán
Affiliation:
Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009-Zaragoza, Spain
R. Ibáñez
Affiliation:
Instituto de Ciencia de Materiales de Aragón, CSIC-Universidad de Zaragoza, 50009-Zaragoza, Spain
A. Beltrán
Affiliation:
UIBCM, Departament de Química Inorgánica, Universitat de Valencia, Dr. Moliner 50, Burjassot, 46100-Valencia, Spain
E. Sinn
Affiliation:
University of Hull, School of Chemistry, Cottingham Road, Kingston upon Hull, HU6 7RX, England
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Abstract

Powder x-ray diffraction, d.c. and a.c. susceptibilities, and SEM have been used to study (Bi1−xPbx)2Sr2Ca2Cu3O10−δ fibers grown by the Laser Floating Zone method. The well-oriented, long-grained superconductor fiber properties are shown to be highly dependent on the partial pressure of oxygen in the growth atmosphere, as well as on fiber pulling rate. Slowly grown fibers contain initially the 2212 (80 K) phase; the 2223 (110 K) phase also appears upon annealing in air. Faster growth rates result in fibers that contain a mixture of the 2212 and 2201 phases and, in this case, long annealing procedures are necessary to observe the 2223 phase.

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Articles
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Journal of Materials Research , Volume 6 , Issue 4 , April 1991 , pp. 699 - 703
Copyright
Copyright © Materials Research Society 1991

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