Effect of Ni Layer Thickness on Cu-Based {100}&lt;001 &gt; Textured Substrate for Coated Conductor

Kashima, N.; Kubota, Shuichi; Shima, Kunihiro; Doi, Toshiya; Nagàya, Shigeo; Inoue, Masayoshi; Kiss, Takanobu

doi:10.7567/jjap.50.063101

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…Ni-electroplated Cu/SUS316 lamination tapes prepared by Tanaka Kikinzoku Kogyo KK (commercially available) were used as the substrates. An SUS316 tape with a thickness of 100 μm was bonded to a 30-μm-thick {100}<001> textured Cu tape, and a 0.5-μm-thick Ni layer was electro-deposited on the surface of the laminated tape (Ni/Cu/ SUS tape) 26,27) . The crystal orientation of the Ni layer in the Ni/Cu/SUS tape was 5.0 to 5.5 (full width at half maximum (FWHM) value in the X-ray (111) ϕ-scan measurement).…”

Section: Methodsmentioning

confidence: 99%

Fabrication of YBa2Cu3O7 Superconducting Film on {100}<001> Textured Cu Tape via Conductive Buffer Layers

et al. 2017

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Long-length coated conductors (CCs) have recently become commercially available, serving as a promising candidate for use in electric power applications. However, the material and manufacturing costs are high, which discourages their use in a wide range of commercially feasible products. REBa 2 Cu 3 O 7 (REBCO; RE: Y or rare-earth elements) superconducting lms with high critical current density (J c) have been grown on cube-textured metal tapes to develop CCs for high temperature, high magnetic eld applications. In the standard approach, a biaxially oriented YBCO layer is deposited on a Y 2 O 3 /Y 2 O 3-stabilized ZrO 2 /CeO 2 buffered Ni-W tape. CCs become highly resistive when they are quenched; therefore, for reliable and safe application, it is necessary to attach low-resistivity metal layers, such as Cu and/or Ag, to the CCs to stabilize and protect them from damage due to quenching. Presently, insulative oxides are used for the buffer layers; thus, thick Ag and Cu layers are required to be deposited as stabilizer layers on the YBCO layer. However, the high material and process costs for obtaining the Ag and Cu layers are one of the major obstacles to achieving low-cost CCs. The use of conductive buffer layers instead of insulative reduces the cost of CCs. In this paper, we propose a new con guration for CCs: YBCO deposited on a conductive Sr(Ti 0.95 Nb 0.05)O 3 buffered Ni-electroplated {100}<001> textured Cu and SUS316 lamination tape. Sr(Ti 0.95 Nb 0.05)O 3 was epitaxially grown on the Ni-electroplated {100}<001> textured Cu tape, and its resistivity was as low as 2.5 mΩ-cm at 77 K. An excellent J c of 2.6 × 10 6 A/cm 2 was achieved at 77 K under a magnetic selfeld for the YBCO/Sr(Ti 0.95 Nb 0.05)O 3 /Ni/Cu/SUS316 tape. We believe that Sr(Ti 0.95 Nb 0.05)O 3 is a promising candidate for the conductive buffer layer material.

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Section: Methodsmentioning

confidence: 99%

Fabrication of YBa2Cu3O7 Superconducting Film on {100}<001> Textured Cu Tape via Conductive Buffer Layers

et al. 2017

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“…A SUS316 tape with a thickness of 100 μm was bonded to a 30 μm thick {100}〈001〉 textured Cu tape to strengthen the very soft annealed pure Cu tape, and a 0.5 μm thick Ni layer was electro-deposited on the surface of the laminated tape to provide Ni/Cu/SUS316 tape. [7][8][9] The crystal orientation of the Ni layer in the Ni/Cu/SUS316 tape was 5.0 to 5.5°(full width at half maximum (FWHM) value in the X-ray (111) fscan measurement). A Nb-doped SrTiO 3 (Nb-STO) thin film of 310 nm thickness was deposited in a 3% H 2 /97% Ar atmosphere by a pulsed laser deposition (PLD) method using sintered bulk Sr(Ti 0.85 Nb 0.15 )O 3+δ as the target.…”

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confidence: 99%

High critical current density YBa₂Cu₃O₇ coating on conductive Nb-doped SrTiO₃ and Ni double-buffered {100}〈001〉 textured pure Cu tape for low-cost coated conductors without generation of any insulative oxides at interfaces

Doi

Morimura

Horii

et al. 2019

Appl. Phys. Express

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For development of a low-cost superconducting wire operating at high temperature, we propose a new approach using conductive rather than insulating buffer layers, combined with {100}<001> textured pure Cu tape to form YBa 2 Cu 3 O 7 /Nb-doped SrTiO 3 /Ni/Cu/stainless steel. The critical current density of the YBa 2 Cu 3 O 7 layer was 2.5 MA/cm 2 at 77 K in a magnetic self-field. We also confirmed that some current flowed into the Cu tape through the conductive buffer layers when the current exceeded the critical current of the YBa 2 Cu 3 O 7 layer, suggesting that the textured Cu tape worked not only as a biaxial template but also as a stabilizer layer.

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Fabrication of buffer layers by metal-organic deposition using 2-ethylhexanates

Ito

Kita

Kubota³

et al. 2012

Physics Procedia

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Effect of Ni Layer Thickness on Cu-Based {100}<001 > Textured Substrate for Coated Conductor

Cited by 6 publications

References 14 publications

Fabrication of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> Superconducting Film on {100}<001> Textured Cu Tape via Conductive Buffer Layers

Fabrication of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> Superconducting Film on {100}<001> Textured Cu Tape via Conductive Buffer Layers

High critical current density YBa₂Cu₃O₇ coating on conductive Nb-doped SrTiO₃ and Ni double-buffered {100}〈001〉 textured pure Cu tape for low-cost coated conductors without generation of any insulative oxides at interfaces

Fabrication of buffer layers by metal-organic deposition using 2-ethylhexanates

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Effect of Ni Layer Thickness on Cu-Based {100}<001 > Textured Substrate for Coated Conductor

Cited by 6 publications

References 14 publications

Fabrication of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> Superconducting Film on {100}<001> Textured Cu Tape via Conductive Buffer Layers

Fabrication of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7</sub> Superconducting Film on {100}<001> Textured Cu Tape via Conductive Buffer Layers

High critical current density YBa2Cu3O7 coating on conductive Nb-doped SrTiO3 and Ni double-buffered {100}〈001〉 textured pure Cu tape for low-cost coated conductors without generation of any insulative oxides at interfaces

Fabrication of buffer layers by metal-organic deposition using 2-ethylhexanates

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Product

Resources

About

High critical current density YBa₂Cu₃O₇ coating on conductive Nb-doped SrTiO₃ and Ni double-buffered {100}〈001〉 textured pure Cu tape for low-cost coated conductors without generation of any insulative oxides at interfaces