Development of Ag-Barrier RHQT Nb<sub>3</sub>Al Wires

Banno, N.; Takeuchi, T.; Iijima, Y.; Nishijima, G.; Kitaguchi, Hitoshi; Miyashita, K.

doi:10.1109/tasc.2016.2639284

Cited by 6 publications

(1 citation statement)

References 16 publications

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“…The critical current density ( J c ) of Nb 3 Al superconducting wire starts to decrease at a compressive pressure of ≈100 MPa, [ 4 ] which encourages the low‐cost “React & Wind” process to fabricate a high‐field superconducting magnet. [ 5 ] However, the J c of the Nb 3 Al superconductor still needs improvement for further application. [ 6,7 ]…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Superconducting Properties of Rapid Heating, Quenching, and Transformation (RHQT) Powder‐in‐Tube Nb₃Al Wires Doped with Sn Element

Ran

Chen

et al. 2021

Physica Status Solidi (a)

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Properties of rapid heating, quenching, and transformation (RHQT)‐treated powder‐in‐tube (PIT) Nb3Al1−xSnx wires are studied herein. After the RHQ process, the body‐centered cubic (bcc) phase is formed in the Sn‐doped Nb3Al wires. The transformed superconducting A15 phase shows a uniform microstructure and homogenous component distribution feature. With the increase of the Sn doping level, the critical transition temperature (Tc), critical current density (Jc), and irreversibility field (Birr) of the superconducting wires increase first and then reduce, achieving the highest Tc value of 17.6 K and the smallest ΔTc of 0.6 K in the 4% Sn doped Nb3Al wire. The 4% Sn addition helps to improve the layer Jc of the sample to 2.1 × 105 A cm−2 at 8 K and 5 T, which is about 2.5 times that of the pure Nb3Al sample. Furthermore, the Nb3Al1−xSnx (x = 0.04) wire gives the highest Birr value of 17.22, 13.23, and 9.11 T at 8, 10, and 12 K, respectively. The addition of Sn helps to achieve stoichiometric Nb3Al A15 phase and formation of precipitations with the size of 10 nm, which might act as the flux‐pinning center.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Superconducting Properties of Rapid Heating, Quenching, and Transformation (RHQT) Powder‐in‐Tube Nb₃Al Wires Doped with Sn Element

Ran

Chen

et al. 2021

Physica Status Solidi (a)

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Significant Influences of Hot-Pressure Sintering on Critical Current Density, Grain Connectivity, and Flux Pinning in Mechanically Alloyed Nb3Al Superconducting Bulk

Pan

Lin

et al. 2020

J Supercond Nov Magn

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Difference of Irreversible Strain Limit in Technical RHQT Nb3Al Superconductors

Banno

Nishijima

Kitaguchi

et al. 2018

IEEE Trans. Appl. Supercond.

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Development of Ag-Barrier RHQT Nb₃Al Wires

Cited by 6 publications

References 16 publications

Microstructure and Superconducting Properties of Rapid Heating, Quenching, and Transformation (RHQT) Powder‐in‐Tube Nb₃Al Wires Doped with Sn Element

Microstructure and Superconducting Properties of Rapid Heating, Quenching, and Transformation (RHQT) Powder‐in‐Tube Nb₃Al Wires Doped with Sn Element

Significant Influences of Hot-Pressure Sintering on Critical Current Density, Grain Connectivity, and Flux Pinning in Mechanically Alloyed Nb3Al Superconducting Bulk

Difference of Irreversible Strain Limit in Technical RHQT Nb3Al Superconductors

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Development of Ag-Barrier RHQT Nb3Al Wires

Cited by 6 publications

References 16 publications

Microstructure and Superconducting Properties of Rapid Heating, Quenching, and Transformation (RHQT) Powder‐in‐Tube Nb3Al Wires Doped with Sn Element

Microstructure and Superconducting Properties of Rapid Heating, Quenching, and Transformation (RHQT) Powder‐in‐Tube Nb3Al Wires Doped with Sn Element

Significant Influences of Hot-Pressure Sintering on Critical Current Density, Grain Connectivity, and Flux Pinning in Mechanically Alloyed Nb3Al Superconducting Bulk

Difference of Irreversible Strain Limit in Technical RHQT Nb3Al Superconductors

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Product

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About

Development of Ag-Barrier RHQT Nb₃Al Wires

Microstructure and Superconducting Properties of Rapid Heating, Quenching, and Transformation (RHQT) Powder‐in‐Tube Nb₃Al Wires Doped with Sn Element

Microstructure and Superconducting Properties of Rapid Heating, Quenching, and Transformation (RHQT) Powder‐in‐Tube Nb₃Al Wires Doped with Sn Element