Abstract
Raman microspectroscopy and imaging techniques are being used to investigate key mechanistic features that influence the formation of layered Bi-based superconducting phases during the thermal treatment employed to produce silversheathed Bi-2223 composite conductors. Seminal information gained from these studies includes the identification of the constituent phases in certain nonsuperconducting second phase (NSP) agglomerations that tend to resist dissipation as high-Tc phase formation proceeds to completion.
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