Superconductor YBa2Cu3−xNixO7−δ compounds prepared by electrospinning

Bernardi, Johannes; Modesto, Diego A.; Medina, Midilane S.; Zenatti, Alessandra; Venâncio, Everaldo C.; Leite, E. R.; Lanfredi, Alexandre J. C.; Escote, M. T.

doi:10.1088/2053-1591/ab1fa3

Cited by 8 publications

(7 citation statements)

References 25 publications

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“…One of the reasons for its popularity is that its main components are non-toxic, non-volatile, and can carry a high current density under a high magnetic field. In addition, it has a smaller anisotropy than any other superconducting materials [122]. BSCCO is also a widely studied high-temperature superconducting material with good stability and high magnetic field under low temperature circumstances.…”

Section: Superconducting Nanofibers Via Electrospinningmentioning

confidence: 99%

“…And with the doping of nickel, the value of T C would become smaller, but the broadening of the superconducting transition would be wider, which can be attributed to the uneven distribution of nickel atoms or the particle effect. In addition, the replacement of copper by nickel reduced the superconducting transition temperature of the material to approximately 70-93.2 K [122].…”

Section: Doping Modification Of Superconducting Nanofibers Via Electr...mentioning

confidence: 99%

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Progress of superconducting nanofibers via electrospinning

Long¹,

Cheng²,

Zhu³

et al. 2021

J. Phys.: Condens. Matter

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Superconducting nanofibers have attracted much attention in basic researches and practical applications due to their unique physical properties such as broad phase transition temperature, excellent heat conductivity, and high critical current density, etc. Electrospinning, as a common method to prepare nanofibers, also has many applications for the preparation of superconducting nanofibers. However, a few of the new methods to fabricate superconducting nanofibers via electrospinning still need further investigations. This review firstly introduces several potential electrospinning methods to obtain superconducting nanofibers, then proceeds to summarize the recent progress in the field of electrospun superconducting materials. The preparation process, difficulties and problems, physical properties of the superconducting nanofibers or nanonetworks (such as superconducting transition temperature, critical current density, critical magnetic field strength, fiber morphology, and structure, etc), theoretical analysis of the properties, and the techniques to improve the performance are also reviewed. In addition, some suggestions and prospects for the development and applications of electrospun superconducting materials in the future are discussed.

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Section: Superconducting Nanofibers Via Electrospinningmentioning

confidence: 99%

Section: Doping Modification Of Superconducting Nanofibers Via Electr...mentioning

confidence: 99%

Progress of superconducting nanofibers via electrospinning

Long¹,

Cheng²,

Zhu³

et al. 2021

J. Phys.: Condens. Matter

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“…The material has a highly porous structure, and the density of the fabric is 0.05 g/cm 3 that is only 0.72% of the theoretical density of Bi2212. A similar technology was used to synthesize fabrics from YBCO nanowires [88][89][90] and LSCO nanowires [91,92]. Similar Bi2212 fabrics were obtained with an addition of Pb [87].…”

Section: Synthesis Of Porous Superconducting Materialsmentioning

confidence: 99%

Highly Porous Superconductors: Synthesis, Research, and Prospects

Gokhfeld

Koblischka

Koblischka-Veneva

2020

Phys. Metals Metallogr.

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This paper gives a review of studies of superconductors with a porosity above 50%. The pores in such superconducting materials provide refrigerant penetration, efficient heat dissipation and stable operation. Methods for the synthesis of the main groups of porous superconductors are described. The results of studies of the structural, magnetic, and electrical transport properties are presented, and the features of the current flow through porous superconductors of various types are considered.

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“…Many studies have focused on YBa 2 Cu 3 O 7-δ (Y-123) cuprates and their modifications to improve their T c and J c [3][4][5]. The great interest in the study of Y-123 properties stems from the fact that the physical properties of Y-123 systems can be modified over a wide range of doping levels without any significant changes in the lattice structure [6,7].…”

Section: Introductionmentioning

confidence: 99%

Effects of li doping on superconducting properties of citrate-gel prepared Y1–xLixBa2Cu3O7–δ Compound

Amiri–Moghadam

Gashmard²,

Hosseini³

et al. 2022

Appl. Phys. A

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The Y 1-x Li x Ba 2 Cu 3 O 7-δ polycrystalline bulk superconductors doped with Li substituting at the Y site at different concentrations (x = 0, 0.01, 0.02, 0.1) were prepared using the citrate-gel method to study the effects of doping on the superconducting temperature and critical current density. The question was whether Li addition characterized by a high Debye frequency would have any positive effects on T c . The optimum citrate-gel and heat treatment conditions were identified as those yielding samples with a maximum grain size on the order of 50 μm (up to the optimum Li doping level, x = 0.01). Li substitution at the Y site was verified by structural, electrical, and magnetic measurements of the produced samples, whereas X-ray diffraction (XRD) analysis revealed the formation of a pure phase with no visible impurity phases. Moreover, AC magnetic susceptibility measurements showed no increase in the superconducting transition temperature T c , consistent with the predicted results obtained by machine learning method, although it was theoretically expected to increase owing to the high Debye frequency of Li. This observation is consistent with magnetic coupling models for pairing mechanism in cuprates. Finally, because of the optimum conditions of the preparation procedure, nearly identical values of the critical current density (J c ) were recorded for samples with different Li doping levels (up to the optimum Li doping level). It was found that improved compound preparation conditions would have a critical and extensive effect on J c enhancement, with nearly no T c suppression.

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Superconductor YBa₂Cu_3−xNi_xO_7−δ compounds prepared by electrospinning

Cited by 8 publications

References 25 publications

Progress of superconducting nanofibers via electrospinning

Progress of superconducting nanofibers via electrospinning

Highly Porous Superconductors: Synthesis, Research, and Prospects

Effects of li doping on superconducting properties of citrate-gel prepared Y1–xLixBa2Cu3O7–δ Compound

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