Ion beam structure modification of YBa2Cu3O7−x coated conductors prepared by solution techniques

Sun, Zhongqiu; Wang, S.S.; Wu, Kai; Liu, Q.; Han, Zhonghe

doi:10.1016/j.physc.2004.02.224

Cited by 9 publications

(3 citation statements)

References 12 publications

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“…During the calcining process, the dried films were heated and cooled rapidly by taking were observed in TFA-added MN-NEG films. Similar grain growth was reported for films prepared by the TFA-MOD technique using metal-trifluoroacetates [11][12][13]. From the SEM and XRD results, we hypothesize that the NEG phase grew from a quasi-liquid phase resulting from TFA addition, as occurs in the case of crystal growth by TFA-MOD [10].…”

Section: Methodssupporting

confidence: 81%

Fabrication and characterization of (Nd,Eu,Gd)Ba2Cu3Oy films by metal-organic deposition using TFA-containing solutions without introduction of water vapor

Kawabata

Nakamura

Kita

et al. 2009

Physica C: Superconductivity

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Nd,Eu,Gd)Ba 2 Cu 3 O y (NEG) films were prepared on LaAlO 3 single-crystal substrates by metal organic deposition (MOD) using fluorine-free solutions of metal 2-ethylhexanates (2-EH) or metal naphthenates (MN) with a small amount of trifluoroacetic acids (TFA) added. The addition of TFA to fluorine-free solutions lowered the growth temperatures, promoted crystal growth, and improved the superconducting properties of NEG films. This was similar to the effects observed on the growth of superconducting films by TFA-MOD using metal-trifluoroacetates. We report the successful growth of NEG films with T c of 92.6 K and J c of 0.36 MA/cm 2 without introduction of water vapor.

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Section: Methodssupporting

confidence: 81%

Fabrication and characterization of (Nd,Eu,Gd)Ba2Cu3Oy films by metal-organic deposition using TFA-containing solutions without introduction of water vapor

Kawabata

Nakamura

Kita

et al. 2009

Physica C: Superconductivity

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“…The gel was dissolved into ethanol to get precursor solution with cation concentration of 1.5 M. The precursor solution was spin coated on LaAlO 3 (0 0 1) single crystal substrates with a spin rate of 4000 rpm for 60 s. The deposited films were first heated slowly to 380°C in humidified flowing oxygen, and then synthesized at 820°C in humidified 1000 ppm oxygen/argon atmosphere for 60 min and afterwards 20 min in dry gas, finally annealed at 450°C in dry oxygen for 90 min to form the superconducting phase. Detailed heat treatment schedule is similar to the previous report [16].…”

Section: Methodsmentioning

confidence: 90%

Ethanol-based TFA–MOD method for preparation of YBCO films

Wang

Shi

Zhu

et al. 2010

Physica C: Superconductivity and its Applications

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“…During the second sintering stage, fluorine was eliminated and the YBCO superconducting film formed. The heat treatment schedule of the calcinations and sintering process were as mentioned in [17].…”

Section: Methodsmentioning

confidence: 99%

YBCO film growth on CeO₂-buffered YSZ substrate by the full-solution method

Wang

Qiu

Wang

et al. 2005

Supercond. Sci. Technol.

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The full-solution method has been developed as a low-cost process for making YBa2Cu3O7−x (YBCO) coated conductors. In this study, highly biaxially textured CeO2 buffer layers have been fabricated on yttria-stabilized zirconia (YSZ) single-crystal substrates by the sol–gel method using inorganic cerium nitrate as the starting precursor material. High-quality superconducting YBCO film has also been fabricated on CeO2-buffered YSZ substrate by the trifluoroacetate metal–organic deposition (TFA-MOD) method. For YBCO superconducting film, only (00l) diffraction peaks can be detected by x-ray diffraction (XRD) analysis. Also from the XRD analysis, the YBCO films show sharp in-plane and out-of-plane texture for all samples, which indicates that the YBCO film is epitaxially grown on the CeO2 buffer layer. From scanning electron microscope (SEM) observations, the YBCO film shows a uniform surface structure. A critical transition temperature, Tc 0, of 91 K and a critical current density of 3 MA cm−2 (77 K, self-field) were obtained for a 0.2 µm thick YBCO film on CeO2-buffered YSZ substrate.

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Ion beam structure modification of YBa2Cu3O7−x coated conductors prepared by solution techniques

Cited by 9 publications

References 12 publications

Fabrication and characterization of (Nd,Eu,Gd)Ba2Cu3Oy films by metal-organic deposition using TFA-containing solutions without introduction of water vapor

Fabrication and characterization of (Nd,Eu,Gd)Ba2Cu3Oy films by metal-organic deposition using TFA-containing solutions without introduction of water vapor

Ethanol-based TFA–MOD method for preparation of YBCO films

YBCO film growth on CeO₂-buffered YSZ substrate by the full-solution method

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Ion beam structure modification of YBa2Cu3O7−x coated conductors prepared by solution techniques

Cited by 9 publications

References 12 publications

Fabrication and characterization of (Nd,Eu,Gd)Ba2Cu3Oy films by metal-organic deposition using TFA-containing solutions without introduction of water vapor

Fabrication and characterization of (Nd,Eu,Gd)Ba2Cu3Oy films by metal-organic deposition using TFA-containing solutions without introduction of water vapor

Ethanol-based TFA–MOD method for preparation of YBCO films

YBCO film growth on CeO2-buffered YSZ substrate by the full-solution method

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YBCO film growth on CeO₂-buffered YSZ substrate by the full-solution method