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作者:

Zhang, Zili (Zhang, Zili.) | Qin, Lang (Qin, Lang.) | Zhang, Huimin (Zhang, Huimin.) | Suo, Hongli (Suo, Hongli.) | Liu, Jianhua (Liu, Jianhua.) | Wang, Lei (Wang, Lei.) | Wang, Qiuliang (Wang, Qiuliang.)

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EI Scopus SCIE

摘要:

In this study, a repeatable and widely applicable method for decreasing the turn -to -turn contact resistivity of REBa2Cu3O7-x (RE=rare earth, REBCO) tapes was demonstrated. By applying a solder without further connections, the contact resistivity can be significantly and consistently decreased to low values. Four solders and five REBCO tapes from various manufacturers were tested to demonstrate the wide applicability of this method. The lowest value achieved by using a combination of solder and surface cleaning procedure was around 3 mu omega cm2. Furthermore, a possible governing mechanism for the repeatable decrease method using solder is discussed. The Mikic elastic correlation was considered the most probable candidate. After carefully discussing the three factors of contact resistivity, namely surface roughness, surface conductance, and surface Young's modulus, surface Young's modulus was considered to have a much higher weight index than the surface roughness, and the surface conductance was negligible. This research can help us better understand the contact resistivity of REBCO and develop a method that can controllably adjust the contact resistivity.

关键词:

Solder REBCO tape Mikic elastic correlation Turn -to -turn resistivity

作者机构:

  • [ 1 ] [Zhang, Zili]Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China
  • [ 2 ] [Qin, Lang]Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China
  • [ 3 ] [Liu, Jianhua]Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China
  • [ 4 ] [Wang, Lei]Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China
  • [ 5 ] [Wang, Qiuliang]Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China
  • [ 6 ] [Zhang, Zili]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 7 ] [Liu, Jianhua]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 8 ] [Wang, Lei]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 9 ] [Wang, Qiuliang]Univ Chinese Acad Sci, Beijing 100049, Peoples R China
  • [ 10 ] [Zhang, Huimin]Beijing Univ Technol, Minist Educ, Key Lab Adv Funct Mat, Fac Mat & Mfg, Beijing 100022, Peoples R China
  • [ 11 ] [Suo, Hongli]Beijing Univ Technol, Minist Educ, Key Lab Adv Funct Mat, Fac Mat & Mfg, Beijing 100022, Peoples R China

通讯作者信息:

  • [Wang, Lei]Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China;;[Wang, Qiuliang]Chinese Acad Sci, Inst Elect Engn, Beijing 100190, Peoples R China;;[Wang, Lei]Univ Chinese Acad Sci, Beijing 100049, Peoples R China;;[Wang, Qiuliang]Univ Chinese Acad Sci, Beijing 100049, Peoples R China

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来源 :

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS

ISSN: 0921-4534

年份: 2024

卷: 617

1 . 7 0 0

JCR@2022

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SCOPUS被引频次: 2

ESI高被引论文在榜: 0 展开所有

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