Bulk textured BiPbSrCaCuO (2223) ceramics by solidification in a magnetic field

Bulk textured BiPbSrCaCuO (2223) ceramics have been prepared by solidification in a magnetic field. We have determined the optimal temperature required in the melt in order to maximize the effect of the magnetic field. X-ray pole figures and scanning electron microscopy have been used to charac...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 1996-06, Vol.264 (3), p.325-330
Main Authors: Noudem, J.G., Beille, J., Bourgault, D., Chateigner, D., Tournier, R.
Format: Article
Language:English
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Summary:Bulk textured BiPbSrCaCuO (2223) ceramics have been prepared by solidification in a magnetic field. We have determined the optimal temperature required in the melt in order to maximize the effect of the magnetic field. X-ray pole figures and scanning electron microscopy have been used to characterize the nature and degree of texture. Magnetic and electrical transport measurements in the superconducting state are also reported. Transport critical current densities as high as 1450 A/cm 2 at 77 K and 0 tesla have been reached. This value is significantly greater than that, 900 A/cm 2, obtained following the same heat treatment in the absence of an applied magnetic field.
ISSN:0921-4534
1873-2143
DOI:10.1016/0921-4534(96)00273-0