Electromagnetic Properties of Superconducting Tapes With High Levels of Zr Addition

Yanbing Liu,Yiying Yao,Yuanfeng Chen,N D Khatri,Jiangchuan Liu, E Galtsyan,Changhui Lei,V Selvamanickam

Applied Superconductivity, IEEE Transactions（2013）

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摘要

The dependence of the critical current density (Jc) on the orientation of applied magnetic fields was studied in Zr-doped ( Gd, Y)Ba2Cu3Ox tapes fabricated by metal organic chemical vapor deposition. The in-field performance of Jc of (Gd, Y)Ba2Cu3Ox tapes with Zr-doping levels of 7.5-30 at.% was investigated up to 5 T over a temperature range of 40-77 K. The highest critical currents (Ic) at H ||c and the highest values of minimum Ic in angular dependence measurements were achieved in the tapes with 20% Zr doping over a broad range of temperature and magnetic field conditions measured. The electromagnetic properties have been related to the changes in BaZrO3 content and microstructure.

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关键词

mocvd,barium compounds,critical current density (superconductivity),crystal microstructure,doping,electromagnetism,gadolinium compounds,high-temperature superconductors,superconducting tapes,yttrium compounds,zirconium,(gd-y)ba2cu3ox:zr,zr-doped tape fabrication,zr-doping levels,angular dependence measurements,applied magnetic field orientation,critical current density,electromagnetic properties,in-field performance,magnetic field conditions,metal organic chemical vapor deposition,microstructures,flux pinning,metal organic chemical vapor deposition (mocvd),rare earth bacuo (rebco),thin film,films,magnetic fields,temperature measurement,high temperature superconductors

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