Contact resistance characteristics of high temperature superconducting bulk- Part IV

Hiroyuki Fujita, Takuya Imaizumi, Masaru Tomita, Naomichi Sakai, Masato Murakami, Izumi Hirabayashi, Koichiro Sawa

研究成果: Conference contribution

8 被引用数 (Scopus)

抄録

The authors have measured contact resistances between two bulk YBCO superconductor blocks for the application to a persistent current switch (PCS). In order to reduce a contact resistance, we deposited indium and silver on the sample surfaces. The resistance was reduced by increasing the thickness of the deposited metal layers, but it saturated when the thickness reached a certain level. The saturation thickness was much smaller in indium than silver. Such a difference is understandable by considering the hardness of these two metals. The resistance was also reduced by increasing the mechanical load. Overloading however caused the adhesion of metal layers, resulting in the peeling off of the deposited layers when the switch was opened. Additionally, the contact area of the switch was analyzed with finite element method (FEM). This analysis result may lead to the elucidation of a contact mechanism with the contact surfaces deposited metal.

本文言語English
ホスト出版物のタイトルElectrical Contacts 2005 - Proceedings of the Fifty-First IEEE Holm Conference on Electrical Contacts
ページ272-276
ページ数5
DOI
出版ステータスPublished - 2005 12 1
イベントFifty-First IEEE Holm Conference on Electrical Contacts - Chicago, IL, United States
継続期間: 2005 9 262005 9 28

出版物シリーズ

名前Electrical Contacts, Proceedings of the Annual Holm Conference on Electrical Contacts
2005
ISSN(印刷版)0361-4395

Conference

ConferenceFifty-First IEEE Holm Conference on Electrical Contacts
国/地域United States
CityChicago, IL
Period05/9/2605/9/28

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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