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Development of Multi-plume and Multi-turn (MPT) PLD for YBCO Coated Conductor

Published online by Cambridge University Press:  01 February 2011

Tomonori Watanabe ,
Reiji Kuriki ,
Takemi Muroga ,
Seiki Miyata ,
Akira Ibi ,
Yutaka Yamada ,
Yuh Shiohara ,
Takeharu Kato  and
Tsukasa Hirayama
Tomonori Watanabe
Affiliation:
ISTEC-SRL Nagoya Coated Conductor Center, 2-4-1, Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan
Reiji Kuriki
Affiliation:
ISTEC-SRL Nagoya Coated Conductor Center, 2-4-1, Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan
Takemi Muroga
Affiliation:
ISTEC-SRL Nagoya Coated Conductor Center, 2-4-1, Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan
Seiki Miyata
Affiliation:
ISTEC-SRL Nagoya Coated Conductor Center, 2-4-1, Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan
Akira Ibi
Affiliation:
ISTEC-SRL Nagoya Coated Conductor Center, 2-4-1, Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan
Yutaka Yamada
Affiliation:
ISTEC-SRL Nagoya Coated Conductor Center, 2-4-1, Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan
Yuh Shiohara
Affiliation:
ISTEC-SRL, 10-13, Shinonome 1-chome, Koto-ku, Tokyo, 135-0062,Japan
Takeharu Kato
Affiliation:
Japan Fine Ceramics Center, 2-4-1, Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan
Tsukasa Hirayama
Affiliation:
Japan Fine Ceramics Center, 2-4-1, Mutsuno, Atsuta-ku, Nagoya, 456-8587, Japan
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Abstract

Our multi-plume and multi-turn (MPT) pulsed-laser deposition (PLD) has been improved to accelerate reliable and fast deposition technique of high Ic (critical current) YBCO (YBa2Cu3O7-x) layer for a long coated conductor fabrication, for we increased the number of multi-turn, from three to four, in our multi-plume and multi-turn (MPT) PLD system. This increase of the number of depositing turns achieved high deposition rate corresponded to 75 mm3/h (=1 μm-thick × 10 mm-wide × 7.5 m/h, throughout all 4 turns) for YBCO layer. This four turn (4t)-MPT-PLD also indicated a capability to combine high deposition rate and high Ic. We attained the highest Ic's of 321 A at the tape speed of 3 m/h and 340 A at tape speed of 2 m/h by 4t-MPT-PLD in 10 mm-wide and 10 cm-long samples.

Based on these results, we successfully deposited a 100 m long YBCO layer by 4t-MPT-PLD. This coated conductor had high Ic as high as 159 A, therefore, the multiplication of Ic and length exhibited high value of 15.9 kA·m.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 868: Symposium C – Recent Advances in Superconductivity - Materials Synthesis, Multiscale Characterization and Functionally Layered Composite Conductors , 2005 , C2.7
Copyright
Copyright © Materials Research Society 2005

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References

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