Reduction of AC losses in Bi2223 tapes with interfilamentary oxide barriers
โ Scribed by R. Inada; Y. Mitsuno; Y. Nakamura; A. Oota; C.S. Li; P.X. Zhang
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 527 KB
- Volume
- 469
- Category
- Article
- ISSN
- 0921-4534
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๐ SIMILAR VOLUMES
Ac-loss and time constant measurements were performed with Bi-2223 tape conductors in Ag matrix at 4.2 K and at 77 K. The frequency dependence of the loss curve shows the expected maximum at xs ยผ 1. In some cases the loss curve goes through a minimum in the higher frequency range and then increases
Flat High-T c multiยฎlament tapes with an Ag matrix have very large coupling current losses in perpendicularly applied 50 Hz magnetic ยฎelds. By the application of ceramic isolating BaZrO 3 -and SrZrO 3 barriers around the ยฎlaments we could reduce at 77 K the coupling current decay time constant to 1.