Effect of Cu doping on properties of RHQT processed powder in tube Nb3Al wires

Xuan, Yi; Li, Guowei; Hu, Yuanbin; Chen, Ming; Yu, Zhishui; Liu, Lian; Yongliang, Chen; Zhang, Yong; Zhao, Yong

doi:10.1016/j.intermet.2021.107104

Cited by 8 publications

(1 citation statement)

References 23 publications

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“…Moreover, the superconducting transition width (ΔT ) of B-doped sample is noticeably narrower than that of the undoped, where the ΔT undoped is 1.6 K and the ΔT 0.1B is 0.8 K. ΔT is closely relevant to the uniformity of the superconducting phase. [5,23] The variation of ΔT declares that B doping boosted the uniformity of Nb 3 Al phase.…”

Section: Resultsmentioning

confidence: 99%

Enhancement of Critical Current Density of Nb₃Al Superconductors by B Doping

Li,

He,

Tan

et al. 2023

Physica Status Solidi (a)

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Boron (B)‐doped Nb3Al superconductors were prepared by mechanical alloying (MA) and subsequent sintering process in this work. Then the critical current density (J c ) of Nb3Al with different amounts of B doping was studied. The results show that J c performance of Nb3Al is improved obviously after B doping. The best J c value obtained in this work is 2.2×104 A·cm‐2 (4.2 K, 5 T) for Nb3(Al0.9B0.1) sample. Furthermore, the mechanism of enhanced J c performance for Nb3(Al0.9B0.1) sample was comprehensively explored. We found that B doping can significantly enhance the grain connectivity of Nb3Al superconductor, and the active cross‐sectional area fraction (A F ) values increase from 0.11 for the undoped sample to 0.34 for Nb3(Al0.9B0.1) sample. Besides, the lattice distortion caused by the interstitially‐dissolved B may also serve as flux pinning centers, which strengthens the flux pinning force of Nb3(Al0.9B0.1).This article is protected by copyright. All rights reserved.

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Section: Resultsmentioning

confidence: 99%