The effect of graphene coated Si, Ti and Nb additions on the superconducting properties of MgB2 bulks

H. R. Liu; F. Yang; L. H. Jin; S. N. Zhang; Q. Y. Wang; X. M. Xiong; J. Q. Feng; C. S. Li; P. X. Zhang; L. Zhou

doi:10.1007/s10854-018-8773-1

The effect of graphene coated Si, Ti and Nb additions on the superconducting properties of MgB₂ bulks

H. R. Liu
, F. Yang
, L. H. Jin
, S. N. Zhang
, Q. Y. Wang
, X. M. Xiong
, J. Q. Feng
, C. S. Li
, P. X. Zhang
, L. Zhou

School of Materials Sience and Engineering

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

2 Scopus citations

Abstract

The effect of graphene (G) coated Si, Ti and Nb additions on the superconducting properties of MgB₂ was systematically studied. The additives were prepared by a coating process and all introduced powders were scattered and combined with graphene. The coating process was useful for the uniform distribution of additives in MgB₂ samples. The additives could effectively make the refinement of MgB₂ grain size, which achieved an enhancement of surface pinning. Meanwhile, the densities of all the doped samples were larger than those of pure samples, which ensured a better intergrain connection for supercurrent. Therefore, the critical current density of MgB₂ with 8 wt% G coated Nb addition got a significant enhancement due to the improvement of grain connectivity and flux pinning properties.

Original language	English
Pages (from-to)	7763-7769
Number of pages	7
Journal	Journal of Materials Science: Materials in Electronics
Volume	29
Issue number	9
DOIs	https://doi.org/10.1007/s10854-018-8773-1
State	Published - 1 May 2018

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title = "The effect of graphene coated Si, Ti and Nb additions on the superconducting properties of MgB2 bulks",

abstract = "The effect of graphene (G) coated Si, Ti and Nb additions on the superconducting properties of MgB2 was systematically studied. The additives were prepared by a coating process and all introduced powders were scattered and combined with graphene. The coating process was useful for the uniform distribution of additives in MgB2 samples. The additives could effectively make the refinement of MgB2 grain size, which achieved an enhancement of surface pinning. Meanwhile, the densities of all the doped samples were larger than those of pure samples, which ensured a better intergrain connection for supercurrent. Therefore, the critical current density of MgB2 with 8 wt\% G coated Nb addition got a significant enhancement due to the improvement of grain connectivity and flux pinning properties.",

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AU - Liu, H. R.

AU - Yang, F.

AU - Jin, L. H.

AU - Zhang, S. N.

AU - Wang, Q. Y.

AU - Xiong, X. M.

AU - Feng, J. Q.

AU - Li, C. S.

AU - Zhang, P. X.

AU - Zhou, L.

PY - 2018/5/1

Y1 - 2018/5/1

N2 - The effect of graphene (G) coated Si, Ti and Nb additions on the superconducting properties of MgB2 was systematically studied. The additives were prepared by a coating process and all introduced powders were scattered and combined with graphene. The coating process was useful for the uniform distribution of additives in MgB2 samples. The additives could effectively make the refinement of MgB2 grain size, which achieved an enhancement of surface pinning. Meanwhile, the densities of all the doped samples were larger than those of pure samples, which ensured a better intergrain connection for supercurrent. Therefore, the critical current density of MgB2 with 8 wt% G coated Nb addition got a significant enhancement due to the improvement of grain connectivity and flux pinning properties.

AB - The effect of graphene (G) coated Si, Ti and Nb additions on the superconducting properties of MgB2 was systematically studied. The additives were prepared by a coating process and all introduced powders were scattered and combined with graphene. The coating process was useful for the uniform distribution of additives in MgB2 samples. The additives could effectively make the refinement of MgB2 grain size, which achieved an enhancement of surface pinning. Meanwhile, the densities of all the doped samples were larger than those of pure samples, which ensured a better intergrain connection for supercurrent. Therefore, the critical current density of MgB2 with 8 wt% G coated Nb addition got a significant enhancement due to the improvement of grain connectivity and flux pinning properties.

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DO - 10.1007/s10854-018-8773-1

M3 - 文章

AN - SCOPUS:85042105175

SN - 0957-4522

VL - 29

SP - 7763

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JO - Journal of Materials Science: Materials in Electronics

JF - Journal of Materials Science: Materials in Electronics

IS - 9

ER -

The effect of graphene coated Si, Ti and Nb additions on the superconducting properties of MgB₂ bulks

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