High-Ic YBCO coated conductors by metal organic deposition method using trifluoroacetates

Teruo Izumi, Tetsuji Honjo, Yoshitaka Tokunaga, Hiroshi Fuji, Ryo Teranishi, Yasuhiro Iijima, Takashi Saitoh, Yuichi Nakamura, Yuh Shiohara

Research output: Contribution to journalConference article

25 Citations (Scopus)

Abstract

For the development of the YBa2Cu3Oy (YBCO) coated conductors, processing of the thicker film and long tape have been investigated using the metal organic deposition (MOD) method with the trifluoroacetates solution. About 1 micro-meter thick MOD film was realized by the control of the PH2O condition during annealing for the formation of the YBCO layer. The improvement was explained by the competition between the nucleation of the undesirable grains and the epitaxial growth up to the surface. By applying the suitable condition to the metallic substrate system, high critical current density (Jc) and critical current corresponding to 1 cm wide tape (Ic*) were realized as to be 1.6 MA/cm2 and 153 A/cm-w in the film with 1 micrometer thickness, respectively. For the fundamental investigation of long tape processing, influence of the gas flow direction during annealing for the YBCO formation was investigated. Although nonuniformities in the X-ray diffraction (XRD) intensities and Jc values were recognized in the film grown under the gas flow parallel to the long direction of the tape, both of them was improved by changing the gas flow direction to the transverse one.

Original languageEnglish
Pages (from-to)2500-2503
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume13
Issue number2 III
DOIs
Publication statusPublished - Jun 1 2003
Externally publishedYes
Event2002 Applied Superconductivity Conference - Houston, TX, United States
Duration: Aug 4 2002Aug 9 2002

Fingerprint

Trifluoroacetic Acid
Tapes
tapes
conductors
Metals
gas flow
Flow of gases
metals
critical current
Annealing
Critical current density (superconductivity)
annealing
Critical currents
Processing
Epitaxial growth
Thick films
nonuniformity
thick films
micrometers
Nucleation

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

High-Ic YBCO coated conductors by metal organic deposition method using trifluoroacetates. / Izumi, Teruo; Honjo, Tetsuji; Tokunaga, Yoshitaka; Fuji, Hiroshi; Teranishi, Ryo; Iijima, Yasuhiro; Saitoh, Takashi; Nakamura, Yuichi; Shiohara, Yuh.

In: IEEE Transactions on Applied Superconductivity, Vol. 13, No. 2 III, 01.06.2003, p. 2500-2503.

Research output: Contribution to journalConference article

Izumi, T, Honjo, T, Tokunaga, Y, Fuji, H, Teranishi, R, Iijima, Y, Saitoh, T, Nakamura, Y & Shiohara, Y 2003, 'High-Ic YBCO coated conductors by metal organic deposition method using trifluoroacetates', IEEE Transactions on Applied Superconductivity, vol. 13, no. 2 III, pp. 2500-2503. https://doi.org/10.1109/TASC.2003.811831
Izumi, Teruo ; Honjo, Tetsuji ; Tokunaga, Yoshitaka ; Fuji, Hiroshi ; Teranishi, Ryo ; Iijima, Yasuhiro ; Saitoh, Takashi ; Nakamura, Yuichi ; Shiohara, Yuh. / High-Ic YBCO coated conductors by metal organic deposition method using trifluoroacetates. In: IEEE Transactions on Applied Superconductivity. 2003 ; Vol. 13, No. 2 III. pp. 2500-2503.
@article{24a4ceb48ebd46d7837a346ca8ecb0df,
title = "High-Ic YBCO coated conductors by metal organic deposition method using trifluoroacetates",
abstract = "For the development of the YBa2Cu3Oy (YBCO) coated conductors, processing of the thicker film and long tape have been investigated using the metal organic deposition (MOD) method with the trifluoroacetates solution. About 1 micro-meter thick MOD film was realized by the control of the PH2O condition during annealing for the formation of the YBCO layer. The improvement was explained by the competition between the nucleation of the undesirable grains and the epitaxial growth up to the surface. By applying the suitable condition to the metallic substrate system, high critical current density (Jc) and critical current corresponding to 1 cm wide tape (Ic*) were realized as to be 1.6 MA/cm2 and 153 A/cm-w in the film with 1 micrometer thickness, respectively. For the fundamental investigation of long tape processing, influence of the gas flow direction during annealing for the YBCO formation was investigated. Although nonuniformities in the X-ray diffraction (XRD) intensities and Jc values were recognized in the film grown under the gas flow parallel to the long direction of the tape, both of them was improved by changing the gas flow direction to the transverse one.",
author = "Teruo Izumi and Tetsuji Honjo and Yoshitaka Tokunaga and Hiroshi Fuji and Ryo Teranishi and Yasuhiro Iijima and Takashi Saitoh and Yuichi Nakamura and Yuh Shiohara",
year = "2003",
month = "6",
day = "1",
doi = "10.1109/TASC.2003.811831",
language = "English",
volume = "13",
pages = "2500--2503",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "2 III",

}

TY - JOUR

T1 - High-Ic YBCO coated conductors by metal organic deposition method using trifluoroacetates

AU - Izumi, Teruo

AU - Honjo, Tetsuji

AU - Tokunaga, Yoshitaka

AU - Fuji, Hiroshi

AU - Teranishi, Ryo

AU - Iijima, Yasuhiro

AU - Saitoh, Takashi

AU - Nakamura, Yuichi

AU - Shiohara, Yuh

PY - 2003/6/1

Y1 - 2003/6/1

N2 - For the development of the YBa2Cu3Oy (YBCO) coated conductors, processing of the thicker film and long tape have been investigated using the metal organic deposition (MOD) method with the trifluoroacetates solution. About 1 micro-meter thick MOD film was realized by the control of the PH2O condition during annealing for the formation of the YBCO layer. The improvement was explained by the competition between the nucleation of the undesirable grains and the epitaxial growth up to the surface. By applying the suitable condition to the metallic substrate system, high critical current density (Jc) and critical current corresponding to 1 cm wide tape (Ic*) were realized as to be 1.6 MA/cm2 and 153 A/cm-w in the film with 1 micrometer thickness, respectively. For the fundamental investigation of long tape processing, influence of the gas flow direction during annealing for the YBCO formation was investigated. Although nonuniformities in the X-ray diffraction (XRD) intensities and Jc values were recognized in the film grown under the gas flow parallel to the long direction of the tape, both of them was improved by changing the gas flow direction to the transverse one.

AB - For the development of the YBa2Cu3Oy (YBCO) coated conductors, processing of the thicker film and long tape have been investigated using the metal organic deposition (MOD) method with the trifluoroacetates solution. About 1 micro-meter thick MOD film was realized by the control of the PH2O condition during annealing for the formation of the YBCO layer. The improvement was explained by the competition between the nucleation of the undesirable grains and the epitaxial growth up to the surface. By applying the suitable condition to the metallic substrate system, high critical current density (Jc) and critical current corresponding to 1 cm wide tape (Ic*) were realized as to be 1.6 MA/cm2 and 153 A/cm-w in the film with 1 micrometer thickness, respectively. For the fundamental investigation of long tape processing, influence of the gas flow direction during annealing for the YBCO formation was investigated. Although nonuniformities in the X-ray diffraction (XRD) intensities and Jc values were recognized in the film grown under the gas flow parallel to the long direction of the tape, both of them was improved by changing the gas flow direction to the transverse one.

UR - http://www.scopus.com/inward/record.url?scp=0041464874&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0041464874&partnerID=8YFLogxK

U2 - 10.1109/TASC.2003.811831

DO - 10.1109/TASC.2003.811831

M3 - Conference article

AN - SCOPUS:0041464874

VL - 13

SP - 2500

EP - 2503

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 2 III

ER -