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Jc Enhancement in Melt Textured YBCO with Different 211 Content by Fast Neutron Irradiation

Published online by Cambridge University Press:  18 March 2011

Anke Köhler ,
Jérôme Plain ,
Wolfgang Seeböck ,
Teresa Puig ,
Anna E. Carrillo ,
Harald W. Weber  and
Xavier Obradors
Anke Köhler
Affiliation:
Atominstitut der Österreichischen Universitäten, Wien, A-1020, Austria
Jérôme Plain
Affiliation:
Institut de Ciéncia de Materials de Barcelona, C.S.I.C., Bellaterra, E-08193, Spain
Wolfgang Seeböck
Affiliation:
Atominstitut der Österreichischen Universitäten, Wien, A-1020, Austria
Teresa Puig
Affiliation:
Institut de Ciéncia de Materials de Barcelona, C.S.I.C., Bellaterra, E-08193, Spain
Anna E. Carrillo
Affiliation:
Institut de Ciéncia de Materials de Barcelona, C.S.I.C., Bellaterra, E-08193, Spain
Harald W. Weber
Affiliation:
Institut de Ciéncia de Materials de Barcelona, C.S.I.C., Bellaterra, E-08193, Spain
Xavier Obradors
Affiliation:
Institut de Ciéncia de Materials de Barcelona, C.S.I.C., Bellaterra, E-08193, Spain
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Abstract

Melt textured YBCO samples with and without 211 inclusions were irradiated by fast neutrons. The enhancement of the critical current density was studied as a function of the 211 content by means of SQUID magnetometry at temperatures from 5 to 77 K and magnetic fields from 0 to 8 T. The highest enhancement factor, found at 77 K and 1.5 T for a 211-free sample, is 27. The enhancement is less effective for samples with 211 inclusions. However, the critical current densities after irradiation show a similar temperature and field dependence in all samples. The role of the initial microstructure on the radiation effects is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 659: Symposium II – High-Temperature Superconductors-Crystal Chemistry, Processing & Properties , 2000 , II7.9
Copyright
Copyright © Materials Research Society 2001

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References

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