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

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

7 引用（Scopus）

摘要

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.

源语言	英语
页（从-至）	1032-1035
页数	4
期刊	Physica C: Superconductivity and its Applications
卷	468
期	14
DOI	https://doi.org/10.1016/j.physc.2008.05.003
出版状态	已出版 - 15 7月 2008

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10.1016/j.physc.2008.05.003

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@article{5435de46f29a4c13ad0c822b1f2d6c6f,

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",

month = jul,

day = "15",

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

language = "英语",

volume = "468",

pages = "1032--1035",

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

UR - http://www.scopus.com/inward/record.url?scp=47749104886&partnerID=8YFLogxK

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