Superconductors are materials that can carry electricity without resistance at cryogenic temperatures, which is useful for large magnet applications such as particle accelerators. Bi2Sr2CaCu2O8-x (Bi-2212) is a superconductor capable of producing very large magnetic fields (>20 Tesla). However, processing Bi-2212 into usable, filamentary round wire poses significant challenges. These wires undergo a densification process that increases the wire’s critical current density but introduces variations in filament size and shape within composite wires. These variations can impact both processing capability and performance. In this study, Bi-2212 wires with and without densification were sectioned and imaged five times at 1 mm depth intervals to evaluate the longitudinal homogeneity of their filaments. ImageJ was used to analyze filament area and circularity, while Minitab provided graphical interpretations of the variations. These findings offer insights into the impact of the densification process on filament homogeneity.
