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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
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
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1. Frischherz, M. C., Kirk, M. A., Farmer, J., Greenwood, L. R., and Weber, H. W., Physica C, 232, 309 (1994).Google Scholar
2. Köhler, A., Sauerzopf, F. M., Zehetmayer, M., Erb, A. and Weber, H. W., Physica C (in press)Google Scholar
3. Obradors, X., Yu, R., Sandiumenge, F., Martínez, B., Vilalta, N., Gomis, V., Puig, T., Piñol, S., Supercond. Sci. Technol., 10, 884 (1997).Google Scholar
4. Carrillo, A.E., Puig, T., Plain, J., Figueras, J., and Obradors, X., Physica C, 336, 213 (2000).Google Scholar
5. Sauerzopf, F. M., Phys. Rev., B 57, 10959 (1998).Google Scholar
6. Sauerzopf, F. M., Wiesinger, H. P., Weber, H. W., and Crabtree, G. W., Phys. Rev., B 51, 6002 (1995).Google Scholar