The effect of solvent treatments and aging on the superconducting properties of MgB2 materials

K. J. Song; R. K. Ko; H. S. Kim; T. H. Kim; N. J. Lee; H. S. Ha; D. W. Ha; S. S. Oh; S. H. Moon; C. Park; S. I. Yoo

doi:10.1016/j.physc.2007.09.004

The effect of solvent treatments and aging on the superconducting properties of MgB₂ materials

K. J. Song^*
, R. K. Ko
, H. S. Kim
, T. H. Kim
, N. J. Lee
, H. S. Ha
, D. W. Ha
, S. S. Oh
, S. H. Moon
, C. Park
, S. I. Yoo

^*Corresponding author for this work

Physics Education

Korea Electrotechnology Research Institute
Seoul National University

Research output: Contribution to journal › Journal article › peer-review

4 Scopus citations

Abstract

To examine the effect of solvent treatments on the superconducting properties of MgB₂, solvent-treated MgB₂ powders were prepared by mixing with water, acetone, or ethanol. No degradation of the superconductivity of MgB₂ by the acetone or ethanol treatments was observed. Appreciable change which accompanies degradation of superconducting properties was observed only when MgB₂ was mixed with water. In addition, to investigate the variation of the flux pinning effect due to the aging, the Ag₈-MgB₂, (SiC)₄-MgB₂, and sintered pure-MgB₂ pellets were kept at room temperature for two and half years in air. The aged Ag₈-MgB₂ composite superconductor has showed degradation of flux pinning effect. The in-field superconducting properties of (SiC)₄-MgB₂, however, did not change after aging.

Original language	English
Pages (from-to)	106-111
Number of pages	6
Journal	Physica C: Superconductivity and its Applications
Volume	467
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physc.2007.09.004
State	Published - 2007.12.1

Keywords

74.25.Fy
74.25.Ha
74.60.Jg
74.70.Ad
Aging effect
Critical current density
Flux pinning
Solvent treatments

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10.1016/j.physc.2007.09.004

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@article{e9f2eb38c15a4c25af5b98c15644c49a,

title = "The effect of solvent treatments and aging on the superconducting properties of MgB2 materials",

abstract = "To examine the effect of solvent treatments on the superconducting properties of MgB2, solvent-treated MgB2 powders were prepared by mixing with water, acetone, or ethanol. No degradation of the superconductivity of MgB2 by the acetone or ethanol treatments was observed. Appreciable change which accompanies degradation of superconducting properties was observed only when MgB2 was mixed with water. In addition, to investigate the variation of the flux pinning effect due to the aging, the Ag8-MgB2, (SiC)4-MgB2, and sintered pure-MgB2 pellets were kept at room temperature for two and half years in air. The aged Ag8-MgB2 composite superconductor has showed degradation of flux pinning effect. The in-field superconducting properties of (SiC)4-MgB2, however, did not change after aging.",

keywords = "74.25.Fy, 74.25.Ha, 74.60.Jg, 74.70.Ad, Aging effect, Critical current density, Flux pinning, Solvent treatments",

author = "Song, \{K. J.\} and Ko, \{R. K.\} and Kim, \{H. S.\} and Kim, \{T. H.\} and Lee, \{N. J.\} and Ha, \{H. S.\} and Ha, \{D. W.\} and Oh, \{S. S.\} and Moon, \{S. H.\} and C. Park and Yoo, \{S. I.\}",

year = "2007",

month = dec,

day = "1",

doi = "10.1016/j.physc.2007.09.004",

language = "English",

volume = "467",

pages = "106--111",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

number = "1-2",

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TY - JOUR

T1 - The effect of solvent treatments and aging on the superconducting properties of MgB2 materials

AU - Song, K. J.

AU - Ko, R. K.

AU - Kim, H. S.

AU - Kim, T. H.

AU - Lee, N. J.

AU - Ha, H. S.

AU - Ha, D. W.

AU - Oh, S. S.

AU - Moon, S. H.

AU - Park, C.

AU - Yoo, S. I.

PY - 2007/12/1

Y1 - 2007/12/1

N2 - To examine the effect of solvent treatments on the superconducting properties of MgB2, solvent-treated MgB2 powders were prepared by mixing with water, acetone, or ethanol. No degradation of the superconductivity of MgB2 by the acetone or ethanol treatments was observed. Appreciable change which accompanies degradation of superconducting properties was observed only when MgB2 was mixed with water. In addition, to investigate the variation of the flux pinning effect due to the aging, the Ag8-MgB2, (SiC)4-MgB2, and sintered pure-MgB2 pellets were kept at room temperature for two and half years in air. The aged Ag8-MgB2 composite superconductor has showed degradation of flux pinning effect. The in-field superconducting properties of (SiC)4-MgB2, however, did not change after aging.

AB - To examine the effect of solvent treatments on the superconducting properties of MgB2, solvent-treated MgB2 powders were prepared by mixing with water, acetone, or ethanol. No degradation of the superconductivity of MgB2 by the acetone or ethanol treatments was observed. Appreciable change which accompanies degradation of superconducting properties was observed only when MgB2 was mixed with water. In addition, to investigate the variation of the flux pinning effect due to the aging, the Ag8-MgB2, (SiC)4-MgB2, and sintered pure-MgB2 pellets were kept at room temperature for two and half years in air. The aged Ag8-MgB2 composite superconductor has showed degradation of flux pinning effect. The in-field superconducting properties of (SiC)4-MgB2, however, did not change after aging.

KW - 74.25.Fy

KW - 74.25.Ha

KW - 74.60.Jg

KW - 74.70.Ad

KW - Aging effect

KW - Critical current density

KW - Flux pinning

KW - Solvent treatments

UR - https://www.scopus.com/pages/publications/36148960044

U2 - 10.1016/j.physc.2007.09.004

DO - 10.1016/j.physc.2007.09.004

M3 - Journal article

AN - SCOPUS:36148960044

SN - 0921-4534

VL - 467

SP - 106

EP - 111

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 1-2

ER -

The effect of solvent treatments and aging on the superconducting properties of MgB₂ materials

Abstract

Keywords

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