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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

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 (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.

Original language	English
Article number	125001
Journal	Superconductor Science and Technology
Volume	32
Issue number	12
DOIs	https://doi.org/10.1088/1361-6668/ab4620
Publication status	Published - 2019 Oct 16
Externally published	Yes

Keywords

(001) texture
Critical current density
Magneto-processing
MgB2
Pinning force

ASJC Scopus subject areas

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1088/1361-6668/ab4620

Cite this

Grigoroscuta, M. A., Sandu, V., Kuncser, A., Pasuk, I., Aldica, G., Suzuki, T. S., Vasylkiv, O., & Badica, P. (2019). Superconducting MgB₂ textured bulk obtained by ex situ spark plasma sintering from green compacts processed by slip casting under a 12T magnetic field. Superconductor Science and Technology, 32(12), Article 125001. https://doi.org/10.1088/1361-6668/ab4620

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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 - 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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