Development of Ag-sheathed Bi-2223 superconducting oxide tape conductors and coils
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چکیده
منابع مشابه
Large transport Jc in Cu-sheathed Sr0.6K0.4Fe2As2 superconducting tape conductors
Copper sheath is the first choice for manufacturing high-T(c) superconducting wires and tapes because of its high electrical and thermal conductivities, low-cost and good mechanical properties. However, Cu can easily react with superconducting cores, such as BSCCO, MgB2 and pnictides, and therefore drastically decrease the transport J(c). Here, we report the fabrication of Cu-sheathed Sr(1-x)K(...
متن کاملThe Current Distribution in Bi-2223/Ag HTS Conductors: Comparing Hall Probe and Magnetic Knife
We analyzed the current distribution in three Bi-2223/Ag tapes with different filament lay-out, comparing the results of magnetic knife and Hall probe experiments. Detailed knowledge of the current distribution can be useful for the diagnostics of HTS conductors. The lateral current distribution was measured with the non-destructive magnetic knife technique and used to calculate the correspondi...
متن کاملExperiment of enhancing critical current in Bi-2223/Ag tape by means of ferromagnetic shielding
Critical current in multifilamentary Ag-sheath Bi-2223 tape is enhanced to some extent by means of thin and narrow coating of pure nickel. The concept of enhancing critical current is based on the magnetic shielding effect resulting in redirection of self-field flux lines. The Ni coating was introduced at the edge regime of the tape in order to redirect the perpendicular component of self-field...
متن کاملObservation of vortex distribution in samples of Bi-2223 Ag-sheathed tapes with and without uranium doping by means of the high-resolution Bitter method
We examined the distribution of vortices in both Bi-2223 Ag-sheathed tape and U-doped Bi-2223 Ag-sheathed tape applying the high-resolution Bitter method. In the low temperature region ( ), we found that the vortices in the undoped Bi-2223 Ag-sheathed tape developed into either a triangular arrangement or a heterogeneous arrangement along the grain boundaries of the Ag sheath, which form weak p...
متن کاملMODELLING OF ROLLING OF SUPERCONDUCTING Ag/BSCCO TAPE
Numerical simulation of the deformation process during flat rolling of multifilament HTS tapes has been investigated using a commercial FEM program, ELFEN. The numerical models were built up in 2D and 3D using a DruckerPragerKap model for the powder. Three different roll diameters (024 mm, 0 8 5 mm and 0126 mm) have been investigated. It is found that it is possible to perform numerical simulat...
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ژورنال
عنوان ژورنال: IEEJ Transactions on Fundamentals and Materials
سال: 1995
ISSN: 0385-4205,1347-5533
DOI: 10.1541/ieejfms1990.115.3_295