scholarly journals Sub-Micron Filament Nb-Ti Superconducting Wires with Cu-Ni-Mn Alloy for AC Use-Critical Current Density and RRR of Stabilizer Cu.

1994 ◽  
Vol 29 (6) ◽  
pp. 238-244
Author(s):  
Katsumi MIYASHITA ◽  
Shuji SAKAI ◽  
Kunihisa KAMATA ◽  
Hiroki TANAKA
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Superconducting Wires

scholarly journals Evaluation of residual stress and texture in isotope based Mg11B2superconductor using neutron diffraction

RSC Advances ◽  
2018 ◽  
Vol 8 (69) ◽  
pp. 39455-39462 ◽  
Author(s):  
Hyunseock Jie ◽  
Wenbin Qiu ◽  
Daniel Gajda ◽  
Jeonghun Kim ◽  
Valiyaparambil Abdulsalam Anvar ◽  
...  
Keyword(s):  
Residual Stress ◽  
Neutron Diffraction ◽  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
Magnesium Diboride ◽  
Superconducting Wires ◽  
Commercial Potential ◽  
Niobium Titanium

Magnesium diboride (MgB2) superconducting wires have demonstrated commercial potential to replace niobium–titanium (NbTi) in terms of comparable critical current density.

scholarly journals Highly c-axis orientated superconducting core and large critical current density in Ba0.6Na0.4Fe2As2 powder-in-tube tape

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
S. Imai ◽  
S. Itou ◽  
S. Ishida ◽  
Y. Tsuchiya ◽  
A. Iyo ◽  
...  
Keyword(s):  
Critical Current Density ◽  
Critical Current ◽  
Current Density ◽  
X Ray Diffraction ◽  
Axis Orientation ◽  
X Ray ◽  
Superconducting Wires ◽  
Superconducting Tape ◽  
Key Issues ◽  
Powder In Tube

Abstract Improvement of the critical current density (Jc) of superconducting wires/tapes is one of the key issues in the field of superconductivity applications. Here we report the fabrication of a silver-sheathed Ba1−xNaxFe2As2 (BaNa-122) superconducting tape by using a powder-in-tube technique and its superconducting properties, in particular transport Jc, as well as the tape-core texture. The optimally-doped BaNa-122 tape with Na concentration x = 0.4 exhibits the superconducting critical temperature (Tc) of 33.7 K and high transport Jc of 4 × 104 A/cm2 at 4.2 K in a magnetic field of 4 T. Patterns of x-ray diffraction for the superconducting core show that the degree of c-axis orientation is significantly enhanced through the tape fabrication process. The tendency of c-axis orientation is advantageous for achieving higher Jc, suggesting the high potential of BaNa-122 for superconducting wire/tape applications.

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