低温工学
Online ISSN : 1880-0408
Print ISSN : 0389-2441
ISSN-L : 0389-2441
Ag2O混合酸化物超電導体の低抵抗接続端子
横山 彰一山田 忠利久保 芳生江川 邦彦清水 善明
著者情報
ジャーナル フリー

1989 年 24 巻 5 号 p. 283-286

詳細
抄録
Low resistivity contacts to the bulk specimens of YBa2Cu3O7-y with Ag have been developed. In order to obtain homogeneous mixtures of YBa2Cu3O7-y and Ag we used Ag2O powder, The contact resistivity of 0.19μΩ·cm2 was obtained by annealing the specimen at 1, 100°C. The current versus voltage characteristic of the contact was found to be ohmic. The contact was made to the specimen which is exposed to air for 110 days; the contact resistivity after this period had elapsed was almost the same as the contact made to the fresh specimen. Using physical and chemical analysis it was found that all the Ag2O in YBa2Cu3O7-y was separated to Ag and that Ag existed in all voids.
著者関連情報
© 社団法人低温工学協会
前の記事
feedback
Top