Superconducting MgB2 textured bulk obtained by ex situ spark plasma sintering from green compacts processed by slip casting under a 12T magnetic field

M. A. Grigoroscuta; V. Sandu; A. Kuncser; I. Pasuk; G. Aldica; T. S. Suzuki; O. Vasylkiv; P. Badica

doi:10.1088/1361-6668/ab4620

Superconducting MgB₂ textured bulk obtained by ex situ spark plasma sintering from green compacts processed by slip casting under a 12T magnetic field

M. A. Grigoroscuta, V. Sandu, A. Kuncser, I. Pasuk, G. Aldica, T. S. Suzuki, O. Vasylkiv^*, P. Badica

^*この研究の対応する著者

研究成果: Article › 査読

5 被引用数 (Scopus)

抄録

MgB₂ green bodies were prepared by magnetic field slip casting in ethyl alcohol with added polyethyleneimine dispersing agent under a high magnetic field, μ₀H₀ = 12 T. Samples were further processed by spark plasma sintering (SPS) and characterized for superconducting properties. Slip casting provides texturing of MgB₂ (the degree of c-axis orientation is approximately 3.5%), which is further increased significantly (to about 21%) in the SPSed sample. The critical current density (J_c) displays anisotropy relative to the orientation of the measuring magnetic field. Specific features of J_c(H, T) and of the pinning force extracted from magnetic measurements with the field parallel and perpendicular to H₀ are discussed.

本文言語	English
論文番号	125001
ジャーナル	Superconductor Science and Technology
巻	32
号	12
DOI	https://doi.org/10.1088/1361-6668/ab4620
出版ステータス	Published - 2019 10月 16
外部発表	はい

ASJC Scopus subject areas

セラミックおよび複合材料
凝縮系物理学
金属および合金
電子工学および電気工学
材料化学

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10.1088/1361-6668/ab4620

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引用スタイル

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abstract = "MgB2 green bodies were prepared by magnetic field slip casting in ethyl alcohol with added polyethyleneimine dispersing agent under a high magnetic field, μ0H0 = 12 T. Samples were further processed by spark plasma sintering (SPS) and characterized for superconducting properties. Slip casting provides texturing of MgB2 (the degree of c-axis orientation is approximately 3.5%), which is further increased significantly (to about 21%) in the SPSed sample. The critical current density (Jc) displays anisotropy relative to the orientation of the measuring magnetic field. Specific features of Jc(H, T) and of the pinning force extracted from magnetic measurements with the field parallel and perpendicular to H0 are discussed.",

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author = "Grigoroscuta, {M. A.} and V. Sandu and A. Kuncser and I. Pasuk and G. Aldica and Suzuki, {T. S.} and O. Vasylkiv and P. Badica",

note = "Funding Information: The Romanian authors acknowledge UEFISCDI projects POC 37_697 no. 28/01.09.2016 REBMAT, ERA-M 74/ 2017 BIOMB, and Core Program 2018/2019, Romania. MAG also acknowledges the internship fellowship at NIMS and Project PFE12/2018. Publisher Copyright: {\textcopyright} 2019 IOP Publishing Ltd",

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AU - Grigoroscuta, M. A.

AU - Sandu, V.

AU - Kuncser, A.

AU - Pasuk, I.

AU - Aldica, G.

AU - Suzuki, T. S.

AU - Vasylkiv, O.

AU - Badica, P.

N1 - Funding Information: The Romanian authors acknowledge UEFISCDI projects POC 37_697 no. 28/01.09.2016 REBMAT, ERA-M 74/ 2017 BIOMB, and Core Program 2018/2019, Romania. MAG also acknowledges the internship fellowship at NIMS and Project PFE12/2018. Publisher Copyright: © 2019 IOP Publishing Ltd

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N2 - MgB2 green bodies were prepared by magnetic field slip casting in ethyl alcohol with added polyethyleneimine dispersing agent under a high magnetic field, μ0H0 = 12 T. Samples were further processed by spark plasma sintering (SPS) and characterized for superconducting properties. Slip casting provides texturing of MgB2 (the degree of c-axis orientation is approximately 3.5%), which is further increased significantly (to about 21%) in the SPSed sample. The critical current density (Jc) displays anisotropy relative to the orientation of the measuring magnetic field. Specific features of Jc(H, T) and of the pinning force extracted from magnetic measurements with the field parallel and perpendicular to H0 are discussed.

AB - MgB2 green bodies were prepared by magnetic field slip casting in ethyl alcohol with added polyethyleneimine dispersing agent under a high magnetic field, μ0H0 = 12 T. Samples were further processed by spark plasma sintering (SPS) and characterized for superconducting properties. Slip casting provides texturing of MgB2 (the degree of c-axis orientation is approximately 3.5%), which is further increased significantly (to about 21%) in the SPSed sample. The critical current density (Jc) displays anisotropy relative to the orientation of the measuring magnetic field. Specific features of Jc(H, T) and of the pinning force extracted from magnetic measurements with the field parallel and perpendicular to H0 are discussed.

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KW - Magneto-processing

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