Contact resistance characteristics of high temperature superconducting Bulk- III

Takuya Imaizumi, Naoki Yamamoto, Masaru Tomita, Naomichi Sakai, Masato Murakami, Izumi Hirabayashi, Koichiro Sawa

研究成果: Conference contribution

9 被引用数 (Scopus)

抄録

A persistent current switch (PCS) is used for superconducting applications, such as superconducting magnetic energy storage (SMES) system. We have proposed a mechanical switch of high-temperature superconductor (HTS) as a mechanical PCS. In the previous paper, the sample surfaces were carefully polished and deposited with metals. As a result, the transfer current exceeded 30A, and the contact resistance reduced to 6μΩ at constant load 500N. In this paper, the experiment result when depositing metal thickly, and the relation between contact resistance and load were reported. Reduction of contact resistance and load was tried by depositing metals. Consequently, contact resistance was able to be reduced. When depositing indium, the increase of contact resistance by load reduction was able to be suppressed. Additionally, based on the experimental results and surface observation, we analyzed the current density and temperature distribution of the switch with finite element method (FEM). This analysis result may lead to the elucidation of a contact mechanism.

本文言語English
ホスト出版物のタイトルProceedings of the 50th IEEE Holm Conference on Electrical Contacts and the 22nd International Conference on Electrical Contacts
ページ416-420
ページ数5
出版ステータスPublished - 2004 12 1
イベントProceedings of the 50th IEEE Holm Conference on Electrical Contacts and the 22nd International Conference on Electrical Contacts - Seattle, WA, United States
継続期間: 2004 9 202004 9 23

出版物シリーズ

名前Proceedings of the 50th IEEE Holm Conference on Electrical Contacts and the 22nd International Conference on Electrical Contacts

Conference

ConferenceProceedings of the 50th IEEE Holm Conference on Electrical Contacts and the 22nd International Conference on Electrical Contacts
国/地域United States
CitySeattle, WA
Period04/9/2004/9/23

ASJC Scopus subject areas

  • 工学(全般)

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