Effects of high-intensity ultrasound on Bi 2Sr 2CaCu 2O 8+x superconductor

Tanya Prozorov; Brett McCarty; Zhihua Cai; Ruslan Prozorov; Kenneth S. Suslick

doi:10.1063/1.1808500

Effects of high-intensity ultrasound on Bi ₂Sr ₂CaCu ₂O _8+x superconductor

Tanya Prozorov, Brett McCarty, Zhihua Cai, Ruslan Prozorov, Kenneth S. Suslick

Research output: Contribution to journal › Article › peer-review

Abstract

Slurries of powdered Bi ₂Sr ₂CaCu ₂O _8+x. (BSCCO-2212) superconductor in high-boiling alkanes were irradiated with intense ultrasound. Significant enhancements of magnetic irreversibility as well as transport critical current are reported. The effects are dependent on the concentration of the slurry and are optimal for 1.5 wt% slurry loading. Electron microscopy shows that ultrasonic treatment leads to a change in grain morphology and intergrain welding. The observed enhancement of superconducting properties is consistent with the limitations in critical currents in BSCCO superconductor being due to intergrain coupling rather than intragrain pinning strength.

Original language	English (US)
Pages (from-to)	3513-3515
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	16
DOIs	https://doi.org/10.1063/1.1808500
State	Published - Oct 18 2004

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1808500

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title = "Effects of high-intensity ultrasound on Bi 2Sr 2CaCu 2O 8+x superconductor",

abstract = "Slurries of powdered Bi 2Sr 2CaCu 2O 8+x. (BSCCO-2212) superconductor in high-boiling alkanes were irradiated with intense ultrasound. Significant enhancements of magnetic irreversibility as well as transport critical current are reported. The effects are dependent on the concentration of the slurry and are optimal for 1.5 wt% slurry loading. Electron microscopy shows that ultrasonic treatment leads to a change in grain morphology and intergrain welding. The observed enhancement of superconducting properties is consistent with the limitations in critical currents in BSCCO superconductor being due to intergrain coupling rather than intragrain pinning strength.",

author = "Tanya Prozorov and Brett McCarty and Zhihua Cai and Ruslan Prozorov and Suslick, {Kenneth S.}",

note = "Funding Information: Discussions with V. Geshkenbein, A. Gurevich, A. Polyanskii, and V. Vlasko-Vlasov are greatly appreciated. This work was supported by the NSF-EPSCoR Grant No. EPS-0296165, a grant from the University of South Carolina Research and Productive Scholarship Fund, and the donors of the American Chemical Society Petroleum Research Fund. The SEM study was carried out in the Center for Microanalysis of Materials (UIUC), which is partially supported by the DOE under Grant No. DEFGO2-91-ER45439.",

year = "2004",

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language = "English (US)",

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AU - Prozorov, Tanya

AU - McCarty, Brett

AU - Cai, Zhihua

AU - Prozorov, Ruslan

AU - Suslick, Kenneth S.

N1 - Funding Information: Discussions with V. Geshkenbein, A. Gurevich, A. Polyanskii, and V. Vlasko-Vlasov are greatly appreciated. This work was supported by the NSF-EPSCoR Grant No. EPS-0296165, a grant from the University of South Carolina Research and Productive Scholarship Fund, and the donors of the American Chemical Society Petroleum Research Fund. The SEM study was carried out in the Center for Microanalysis of Materials (UIUC), which is partially supported by the DOE under Grant No. DEFGO2-91-ER45439.

PY - 2004/10/18

Y1 - 2004/10/18

N2 - Slurries of powdered Bi 2Sr 2CaCu 2O 8+x. (BSCCO-2212) superconductor in high-boiling alkanes were irradiated with intense ultrasound. Significant enhancements of magnetic irreversibility as well as transport critical current are reported. The effects are dependent on the concentration of the slurry and are optimal for 1.5 wt% slurry loading. Electron microscopy shows that ultrasonic treatment leads to a change in grain morphology and intergrain welding. The observed enhancement of superconducting properties is consistent with the limitations in critical currents in BSCCO superconductor being due to intergrain coupling rather than intragrain pinning strength.

AB - Slurries of powdered Bi 2Sr 2CaCu 2O 8+x. (BSCCO-2212) superconductor in high-boiling alkanes were irradiated with intense ultrasound. Significant enhancements of magnetic irreversibility as well as transport critical current are reported. The effects are dependent on the concentration of the slurry and are optimal for 1.5 wt% slurry loading. Electron microscopy shows that ultrasonic treatment leads to a change in grain morphology and intergrain welding. The observed enhancement of superconducting properties is consistent with the limitations in critical currents in BSCCO superconductor being due to intergrain coupling rather than intragrain pinning strength.

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