Transport and structural properties of MgB2/Fe wires produced by redesigning internal Mg diffusion process

Yetis, Hakan ; Avci, Dogan ; Karaboga, Firat ; Aksoy, Canan ; Gajda, Daniel ; Martínez, Elena ; Mehmet Tanyildiz, Fatih ; Zaleski, Andrzej ; Babij, Michal ; Tran, Lan Maria ; Angurel, Luis Alberto (Universidad de Zaragoza) ; Fuente, G.F. de la ; Belenli, Ibrahim Belenli

Resumen: We report transport, electromechanical, and structural properties of single core MgB2/Fe wire produced using a new fabrication method, called designed internal Mg diffusion (IMD) process, which relies on the use of non-stoichiometric Mg + B pellets with excess Mg in place of a central Mg rod used in the standard IMD method. Structural analysis revealed the successful formation of a porous MgB2 structure in the center and a dense circular MgB2 layer surrounding this structure in the designed-IMD wire. Fast transport I-V measurements showed that the designed IMD method increased engineering critical current density (J e) up to twice that of the IMD wires in self-field. The central porous MgB2 structure shared the applied current and indirectly behaved as an internal stabilizer against quench damage at high applied currents. © 2022 IOP Publishing Ltd.

Idioma: Inglés

DOI: 10.1088/1361-6668/ac5339

Año: 2022

Publicado en: Superconductor Science and Technology 35, 4 (2022), [7 pp]
ISSN: 0953-2048

Factor impacto JCR: 3.6 (2022)

Categ. JCR: PHYSICS, CONDENSED MATTER rank: 25 / 67 = 0.373 (2022) - Q2 - T2
Categ. JCR: PHYSICS, APPLIED rank: 52 / 160 = 0.325 (2022) - Q2 - T1

Factor impacto CITESCORE: 6.0 - Engineering (Q1) - Physics and Astronomy (Q1) - Materials Science (Q2)

Factor impacto SCIMAGO: 1.191 - Ceramics and Composites (Q1) - Condensed Matter Physics (Q1) - Metals and Alloys (Q1) - Materials Chemistry (Q1) - Electrical and Electronic Engineering (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA/T54-20R
Financiación: info:eu-repo/grantAgreement/ES/MICINN/AEI/PID2020-113034RB-I00

Tipo y forma: Artículo (PostPrint)

Área (Departamento): Área Cienc.Mater. Ingen.Metal. (Dpto. Ciencia Tecnol.Mater.Fl.)