Physics – Condensed Matter – Materials Science
Scientific paper
2004-10-12
IEEE Transactions on Applied Superconductivity 15 (2), 3114-3117 (2005)
Physics
Condensed Matter
Materials Science
Applied Superconductivity Conference (ASC-2004), Jacksonville, Florida, October 4-8, 2004
Scientific paper
Heterogeneous sonochemical synthesis was used to modify superconducting properties of granular YBa2Ca3CuO7-y and Bi2Sr2CaCu2O8+x. Sonication of liquid-powder alkane slurries produces material with enhanced intergrain coupling and improved current-carrying capabilities. Co-sonication with metals and organometallics results in highly compact nanocomposites with increased magnetic irreversibility. Ultrasonic irradiation of YBa2Ca3CuO7-y carried under partial oxygen atmosphere produces similar morphological effects and increases superconducting transition temperature due to effective surface saturation with oxygen. Detailed chemical and physical characterization of sonochemically prepared high-Tc nanocomposites is presented.
Liu Baowei
McCarty Brett
Prozorov Ruslan
Prozorov Tanya
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