Evaluation of interface and cohesion shear strength of mechanical lap-joint between HTS coated conductors intended for segmented HTS magnet

Luis E.F. Aparicio, Satoshi Ito, Hidetoshi Hashizume

研究成果: Article査読

5 被引用数 (Scopus)

抄録

This study evaluates the mechanical strength, failure mechanism and change in electrical resistance under shear stress of a mechanical lap joint of Rare-Earth Barium Copper Oxide high-temperature superconducting (HTS) tapes using indium as bonding material, which has been proposed for "remountable" (demountable) or segmented HTS magnet in future fusion reactors. Results from tensile shear tests using reinforced REBCO tapes along with an analysis on the failure mode demonstrated that contact conductivity is the critical parameter that defines joint's shear strength rather than joint pressure. Additionally, it was concluded that change in joint resistance when failure occur is not abrupt and its behavior as joint displaces depends on the failure mode of the joint.

本文言語English
ページ(範囲)789-795
ページ数7
ジャーナルFusion Science and Technology
72
4
DOI
出版ステータスPublished - 2017 11月

ASJC Scopus subject areas

  • 土木構造工学
  • 核物理学および高エネルギー物理学
  • 原子力エネルギーおよび原子力工学
  • 材料科学(全般)
  • 機械工学

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