Fabrication and transport characteristics of long length Y-123 coated conductors processed by IBAD and PLD

Author

Iijima, Yasuhiro ; Kakimoto, Kazuomi ; Saitoh, Takashi

Author_Institution

Mater. Technol. Lab., Fujikura Ltd., Tokyo, Japan

Volume

13

Issue

2

fYear

2003

fDate

6/1/2003 12:00:00 AM

Firstpage

2466

Lastpage

2469

Abstract

Tapes of 30-m length high-J_c Y-123 were processed by using ion-beam-assisted deposition (IBAD) and pulsed-laser deposition (PLD). Biaxially textured Gd₂Zr₂O₇ buffer layers up to 60-m length were fabricated by IBAD with production speed of 0.5 - 1.0 m/h. Y-123 films were processed on them by PLD with production speed of 1.0 - 4.0 m/h. A 30-m Y-123 film was obtained with uniform thickness of 0.5 μm and Δφ of 8 - 11°. I_c of 49 A (J_c = 0.99 MA/cm²) was obtained in 10-m length part end-to-end, whose I-V curve had high n-value of 46. The 30-m length end-to-end I_c value was 40 A (J_c = 0.8 MA/cm²), where I_c times length reached 1200 Am.

Keywords

barium compounds; critical current density (superconductivity); high-temperature superconductors; ion beam assisted deposition; pulsed laser deposition; superconducting tapes; superconducting thin films; yttrium compounds; 0.5 micron; 10 m; 30 m; 40 A; 60 m; Gd₂Zr₂O₇; IBAD; PLD; YBa₂Cu₃O₇; biaxially textured Gd₂Zr₂O₇; buffer layers; fabrication; high temperature superconductor; ion-beam-assisted deposition; long length Y-123 coated conductors; pulsed-laser deposition; transport characteristics; Conductors; Fabrication; Ion beams; Optical pulses; Production; Pulsed laser deposition; Substrates; Superconducting films; Superconductivity; Zirconium;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2003.811822

Filename

1212113