Nucleation and epitaxy growth of high-entropy REBa2Cu3O7– (RE= Y, Dy, Gd, Sm, Eu) thin films by metal organic deposition

Chen, Jing; Huang, Renkun; Zhou, Xinghang; Zhou, Difan; Li, Minjuan; Bai, Chuanyi; Li, Yong; Cai, Chuanbing

doi:10.1016/j.jre.2022.06.006

Cited by 10 publications

(5 citation statements)

References 41 publications

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“…Evidently, all constituent elements exhibit a uniform distribution throughout the sample, aligning with the findings in LIBS spectra analysis. 26 , 27 It is noteworthy that in addition to the primary elements, oxygen was also detected on the coated film’s surface. This observation implies that during the PLD process conducted in an open-air environment, a portion or the entirety of the film composition underwent oxidation.…”

Section: Resultsmentioning

confidence: 99%

Optimization of Laser-Wavelength Dependence for Open-Air Atmospheric Pressure Pulsed Laser Deposition of AlCrFeMnTi High-Entropy Alloy for Tailored Surface Properties

Mahdavi,

Asghari Alamdari,

Kepceoğlu

et al. 2024

ACS Omega

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High-entropy alloys (HEAs) have garnered significant attention in different fields due to their exceptional mechanical and physical properties, making them promising candidates for various applications. Several techniques, including physical vapor deposition and pulsed laser deposition (PLD), have been employed for the fabrication of HEA thin films. In this study, we explore a novel approach to synthesizing the lightweight HEA (LWHEA) AlCrFeMnTi using PLD in air at atmospheric pressure with a particular focus on the influence of the laser wavelength on the deposition process and the resulting alloy characteristics. This research investigates the impact of different laser wavelengths on the LWHEA's characterization and the optimization of laser wavelength dependence in air at atmospheric pressure PLD of LWHEA AlCrFeMnTi for tailored surface properties such as phase composition, microstructure, and corrosion resistance. Systematically varying the laser wavelength was attempted to optimize the deposition conditions. This was aimed at achieving enhanced properties and precise control over the alloy's composition. This work contributes to a deeper understanding of the open air PLD process for LWHEAs and sheds light on the role of the laser wavelength in tailoring their properties, which can have significant implications for the development of advanced materials for aerospace, automotive, and other high-performance applications. Ultimately, this research aims to provide valuable insights into the design and fabrication of LWHEAs with tailored properties through laser-based deposition techniques.

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Section: Resultsmentioning

confidence: 99%

Optimization of Laser-Wavelength Dependence for Open-Air Atmospheric Pressure Pulsed Laser Deposition of AlCrFeMnTi High-Entropy Alloy for Tailored Surface Properties

Mahdavi,

Asghari Alamdari,

Kepceoğlu

et al. 2024

ACS Omega

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“…Liu and co-workers successfully fabricated HE REBa 2 Cu 3 O 7− δ (RE = 0.7Y + 0.2Dy + 0.2Gd + 0.2Sm + 0.2Eu) (HE-REBCO) superconducting films with a thickness of up to 800 nm using trifluoroacetate-metal organic deposition (TFA-MOD). 168 The incorporation of multiple RE elements in the HE-REBCO system resulted in an enhanced entropy change (Δ S ), which promoted the growth of the REBCO thin film along the c -axis, while competing with a / b -axis growth. The microstructure and element distribution of the HE-REBCO films were examined using TEM and EDS.…”

Section: High-entropy Rare Earth Oxidesmentioning

confidence: 99%

High-entropy rare earth materials: synthesis, application and outlook

Fu,

Jiang,

Zhang

et al. 2024

Chem. Soc. Rev.

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“…The TFA-REBCO precursor solution is prepared by the lowfluorine metal-organic deposition route as described in detail elsewhere [14,26,27]. In a typical process, yttrium, dysprosium, and copper acetates are dissolved in propionic to make Y-propionate, Dy-propionate, and Cu-propionate, respectively.…”

Section: Preparations Of Bzo-added Tfa-(ydy)bco Precursor Solutionsmentioning

confidence: 99%

Monodisperse BaZrO₃ nanocrystals and flux pinning effect on upscaling MOD-derived (Y,Dy)Ba₂Cu₃O₇₋ _δ superconducting tapes

Huang,

Chen,

Liu

et al. 2023

Supercond. Sci. Technol.

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In the present work, the monodisperse BaZrO3(BZO) nanocrystals with controllable sizes were successfully introduced into trifluoroacetate metal-organic deposition derived (Y,Dy)Ba2Cu3O7-δ (TFA-MOD (Y,Dy)BCO) coated conductors superconducting tapes to act as effective pinning centers. The BZO nanocrystal addition strategy was extended to upscaling coated conductors as long as hundreds of meters, and as thick as 3.4 μm of (Y,Dy)BCO layers. The corresponding superconducting performances of BZO-added (Y,Dy)BCO coated conductors were systematically investigated under various applied magnetic fields and temperatures. It is revealed that the Ic(77K, self-field) of BZO-added tapes decreases linearly with the BZO concentrations, while the corresponding in-field lift-factors increase for all studied BZO additions. In-field Jc values under various fields at low temperatures show that the (Y,Dy)BCO tape with 5%-BZO addition exhibits better performance than that of other concentrations. Besides, such a benefit of BZO addition appears identical for both thin and thick samples as well as the hundreds of meters long tapes. The angular dependence of in-field Ic also shows that significant improvement occurs in all the studied angular ranges after nanocrystal BZO additions, demonstrating the nanocrystal addition strategy is of great value to upscaling commercial (Y,Dy)BCO tape for in-field applications. 

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Nucleation and epitaxy growth of high-entropy REBa2Cu3O7– (RE= Y, Dy, Gd, Sm, Eu) thin films by metal organic deposition

Cited by 10 publications

References 41 publications

Optimization of Laser-Wavelength Dependence for Open-Air Atmospheric Pressure Pulsed Laser Deposition of AlCrFeMnTi High-Entropy Alloy for Tailored Surface Properties

Optimization of Laser-Wavelength Dependence for Open-Air Atmospheric Pressure Pulsed Laser Deposition of AlCrFeMnTi High-Entropy Alloy for Tailored Surface Properties

High-entropy rare earth materials: synthesis, application and outlook

Monodisperse BaZrO₃ nanocrystals and flux pinning effect on upscaling MOD-derived (Y,Dy)Ba₂Cu₃O₇₋ _δ superconducting tapes

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Nucleation and epitaxy growth of high-entropy REBa2Cu3O7– (RE= Y, Dy, Gd, Sm, Eu) thin films by metal organic deposition

Cited by 10 publications

References 41 publications

Optimization of Laser-Wavelength Dependence for Open-Air Atmospheric Pressure Pulsed Laser Deposition of AlCrFeMnTi High-Entropy Alloy for Tailored Surface Properties

Optimization of Laser-Wavelength Dependence for Open-Air Atmospheric Pressure Pulsed Laser Deposition of AlCrFeMnTi High-Entropy Alloy for Tailored Surface Properties

High-entropy rare earth materials: synthesis, application and outlook

Monodisperse BaZrO3 nanocrystals and flux pinning effect on upscaling MOD-derived (Y,Dy)Ba2Cu3O7− δ superconducting tapes

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Monodisperse BaZrO₃ nanocrystals and flux pinning effect on upscaling MOD-derived (Y,Dy)Ba₂Cu₃O₇₋ _δ superconducting tapes