Prolonged heat treatment of Bi-Sr-Ca-Cu-O superconducting ceramics

M. Kalnberga Institute of Solid State Physics, University of Latvia, 8 Kengaraga St., 226063, Riga, Latvia

I. Popova Institute of Solid State Physics, University of Latvia, 8 Kengaraga St., 226063, Riga, Latvia

A. Sternberg Institute of Solid State Physics, University of Latvia, 8 Kengaraga St., 226063, Riga, Latvia

A. Gajevskis Institute of Solid State Physics, University of Latvia, 8 Kengaraga St., 226063, Riga, Latvia

Abstract

The effect of long-time heat treatment and multigrinding of pellets on formation of the high-T_c superconducting phase has been studied in Pb- and Sb-doped Bi-Sr-Ca-Cu-O ceramics. X-ray diffraction patterns, resistivity and ac magnetic susceptibility measurements are used to compare samples containing and not containing Sb.

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Prolonged heat treatment of Bi-Sr-Ca-Cu-O superconducting ceramics

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Prolonged heat treatment of Bi-Sr-Ca-Cu-O superconducting ceramics

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