Thin Film YBCO Tape with Over 3 meter Length Fabricated by Inclined Substrate Deposition

Muranaka, K.; Fujino, K.; Hahakura, S.; Ohmatsu, K.; Takei, H.; Sato, Y.; Honjo, S.; Takahashi, Y.

doi:10.1007/978-4-431-66877-0_173

Cited by 6 publications

(1 citation statement)

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“…In order to realize HoBCO tapes with high Ic, high strength and long length, continuous PLD has been developed [1]- [2,2]. In our process, long length and flexible Ni-alloy textured tapes [3] were used as a substrate.…”

Section: Introductionmentioning

confidence: 99%

High-Ic HoBCO Coated Conductors by PLD Method

Ohmatsu

Hahakura

Hasegawa

et al. 2005

IEEE Trans. Appl. Supercond.

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Ho 1 Ba 2 Cu 3 O x (HoBCO) coated conductors by using Pulsed Laser Deposition (PLD) have been developed on textured Ni-alloy substrates. Hetero-epitaxial growth of CeO 2 YSZ CeO 2 was developed to introduce in-plane alignment for buffer layers. CeO 2 seed and cap layers were deposited by RF sputtering. YSZ diffusion layer was deposited by PLD. The most advantage of buffer layers are high growth rate and large deposition area by using in-plane alignment of textured substrate. This was demonstrated by a high production speed of buffer layers. CeO 2 and YSZ buffer layers show a high production speed of 7 m/h and 8 m/h, respectively. As for the HoBCO deposition, a production speed of 10 m/h was demonstrated by using high growth rate of 4 m min in our PLD process. Ic of the short sample reached 357 A/cm-width at 77 K, 0 T, and 2,423 A/cm-width at 30 T, 4.2 K. Long length HoBCO conductors up to 35 m were performed by using reel to reel tape transfer system of each process. Index Terms-High-superconductor, Ho-123, pulsed laser deposition, thin film.

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