The Effect on the Superconducting Properties of the Addition of Oxygen and Titanium to (Nb‐1Zr)3Sn Mono Element Internal Tin (MEIT) Conductors
ADVANCES IN CRYOGENIC ENGINEERING, VOL 52A & 52B(2006)
摘要
MEIT conductors fabricated with Nb-1at%Zr filaments are evaluated as to the effect of the additions of Oxygen and Titanium introduced through the tin core. The effects as a function of time and temperature are evaluated through reaction area and grain size. Current density in the reaction layer is evaluated as a function of magnetic field and the reaction variables. In the temperature range of 850 degrees C to 900 degrees C the addition of oxygen yielded the best results with layer current density of 1877 A/mm(2) at 12 T. Fabrication experience with Nb-1at%ZrOx filaments and solutions are also discussed.
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关键词
superconductors,Nb3Sn
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