Effects of TiC doping on the upper critical field of MgB2 superconductors

S. C. Yan; L. Zhou; G. Yan; Y. F. Lu

doi:10.1016/j.physc.2008.05.003

Effects of TiC doping on the upper critical field of MgB₂ superconductors

S. C. Yan, L. Zhou, G. Yan, Y. F. Lu

School of Materials Sience and Engineering

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

7 Scopus citations

Abstract

TiC doped MgB₂ bulks were fabricated by two-step reaction method. The sample with a nominal compositions of Mg(B_0.95(TiC)_0.05)₄ was first sintered at 1000 °C for 0.5 h. An appropriate amount of Mg was added to reach the stoichiometry of Mg(B_0.95(TiC)_0.05)₂, which was sintered at 750 °C for 2 h. The H_c2 for the micro-TiC doped MgB₂ reached 12 T at 20 K. And J_c is 5.3 × 10⁴ A/cm² at 20 K and 1 T. The results indicate that the two-step reaction method could effectively introduce the carbon in TiC into the MgB₂ crystalline lattice, and therefore improve the upper critical field.

Original language	English
Pages (from-to)	1032-1035
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	468
Issue number	14
DOIs	https://doi.org/10.1016/j.physc.2008.05.003
State	Published - 15 Jul 2008

Keywords

MgB
TiC doping
Two-step reaction method
Upper critical field

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10.1016/j.physc.2008.05.003

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title = "Effects of TiC doping on the upper critical field of MgB2 superconductors",

abstract = "TiC doped MgB2 bulks were fabricated by two-step reaction method. The sample with a nominal compositions of Mg(B0.95(TiC)0.05)4 was first sintered at 1000 °C for 0.5 h. An appropriate amount of Mg was added to reach the stoichiometry of Mg(B0.95(TiC)0.05)2, which was sintered at 750 °C for 2 h. The Hc2 for the micro-TiC doped MgB2 reached 12 T at 20 K. And Jc is 5.3 × 104 A/cm2 at 20 K and 1 T. The results indicate that the two-step reaction method could effectively introduce the carbon in TiC into the MgB2 crystalline lattice, and therefore improve the upper critical field.",

keywords = "MgB, TiC doping, Two-step reaction method, Upper critical field",

author = "Yan, {S. C.} and L. Zhou and G. Yan and Lu, {Y. F.}",

year = "2008",

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doi = "10.1016/j.physc.2008.05.003",

language = "英语",

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

issn = "0921-4534",

publisher = "Elsevier B.V.",

number = "14",

}

TY - JOUR

T1 - Effects of TiC doping on the upper critical field of MgB2 superconductors

AU - Yan, S. C.

AU - Zhou, L.

AU - Yan, G.

AU - Lu, Y. F.

PY - 2008/7/15

Y1 - 2008/7/15

N2 - TiC doped MgB2 bulks were fabricated by two-step reaction method. The sample with a nominal compositions of Mg(B0.95(TiC)0.05)4 was first sintered at 1000 °C for 0.5 h. An appropriate amount of Mg was added to reach the stoichiometry of Mg(B0.95(TiC)0.05)2, which was sintered at 750 °C for 2 h. The Hc2 for the micro-TiC doped MgB2 reached 12 T at 20 K. And Jc is 5.3 × 104 A/cm2 at 20 K and 1 T. The results indicate that the two-step reaction method could effectively introduce the carbon in TiC into the MgB2 crystalline lattice, and therefore improve the upper critical field.

AB - TiC doped MgB2 bulks were fabricated by two-step reaction method. The sample with a nominal compositions of Mg(B0.95(TiC)0.05)4 was first sintered at 1000 °C for 0.5 h. An appropriate amount of Mg was added to reach the stoichiometry of Mg(B0.95(TiC)0.05)2, which was sintered at 750 °C for 2 h. The Hc2 for the micro-TiC doped MgB2 reached 12 T at 20 K. And Jc is 5.3 × 104 A/cm2 at 20 K and 1 T. The results indicate that the two-step reaction method could effectively introduce the carbon in TiC into the MgB2 crystalline lattice, and therefore improve the upper critical field.

KW - MgB

KW - TiC doping

KW - Two-step reaction method

KW - Upper critical field

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U2 - 10.1016/j.physc.2008.05.003

DO - 10.1016/j.physc.2008.05.003

M3 - 文章

AN - SCOPUS:47749104886

SN - 0921-4534

VL - 468

SP - 1032

EP - 1035

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 14

ER -

Effects of TiC doping on the upper critical field of MgB₂ superconductors

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Keywords

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