| Abstract | Superconducting whiskers grown from Bi---Sr---Ca---Cu---O powders during a sintering process have been studied as a function of the starting mixture and sintering cycles. Experiments using X-ray diffraction, electron diffraction, EDX, HREM, magnetization and resistance were used to investigate the composition, structure and superconducting properties of these whiskers. They are found to be very homogeneous, free of stacking faults and exfoliations. They also show a full Meissner effect. Under proper conditions layers of the 2223 phase appear to be intercalated in the predominant 2212 phase. |
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