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Environment-resistive coating for the thin-film-based superconducting fault-current limiter Ag/Au–Ag/YBa2Cu3O7/CeO2/Al2O3

✍ Scribed by H. Matsui; W. Kondo; K. Tsukada; M. Sohma; I. Yamaguchi; T. Kumagai; T. Manabe; K. Arai; H. Yamasaki

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
672 KB
Volume
470
Category
Article
ISSN
0921-4534

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✦ Synopsis

We have studied environment-resistive coatings (ERC) for the thin-film-based superconducting fault-current limiter (SFCL) Ag/Au-Ag/YBa 2 Cu 3 O 7 /CeO 2 /Al 2 O 3 . We evaluated nine candidate ERC materials by two accelerating-environment tests, and revealed that the shellac-and the fluorine-resin have a high environmental resistance. Especially, the shellac resin almost completely protected Jc of an element exposed to 60 °C saturated water vapor for 2 h (3.4->3.2 MA/cm 2 ). We also performed a practical operation test of SFCL using an element half covered by shellac, and found that the ERC does not diminish the current limiting properties similarly to the previous results of the .

📜 SIMILAR VOLUMES

The effect of Ag or Au overlayers on und
The effect of Ag or Au overlayers on underlying YBa2Cu3O7 thin films
✍ A. Mogro-Campero; L.G. Turner 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 187 KB

Although Ag and Au ale commonly used to provide low-resistance contacts to YBa2Cu307 (YBCO), their effect on the electrical properties of the underlying YBCO has been largely neglected. Epitaxial YBCO thin films on LaAIO3 substrates were used in this study. Thin (50 nm) and thick ( 1 I~m) layers of