La2Zr2O7 Doping Effects on MOD-SmBCO-Coated Conductors

Sun, Meijuan; Liu, W. Q.; Zhou, Hongbin; He, Kai; Yu, Meijuan; Liu, Z. Y.; Lu, Yuming; Cai, Chuanbing; Chen, S. G.

doi:10.1007/s10948-018-4634-7

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…To our knowledge, this T c value is the highest reported for SmBCO films deposited either on single crystals or on metallic tapes [35,37,39,40]. Additionally, the J sf c values at 77 K are among the highest reported for CSD-grown SmBCO film [39][40][41]. The AFM measurements carried out on the film grown at 810 °C and 50 ppm ( Figure 4) present similar features as the SEM image shown before.…”

Section: Discussionsupporting

confidence: 74%

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Rapid Pyrolysis of SmBa2Cu3O7-δ Films in CSD-MOD Using Extremely-Low-Fluorine Solutions

Cayado

Erbe

et al. 2020

Coatings

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SmBa2Cu3O7-δ (SmBCO) films have been prepared by chemical solution deposition starting from extremely-low-fluorine solutions (7% fluorine with respect to standard full trifluoroacetate solutions). Smooth and homogeneous SmBCO films could be achieved at heating rates of up to 20 °C/min during pyrolysis. The best films were achieved at a crystallization temperature of 810 °C and 50 ppm of oxygen partial pressure. At these conditions, the ~270 nm thick SmBCO films grow mostly c-axis-oriented with J c sf values at 77 K of ~2 MA/cm2 and critical temperatures Tc of up to 95.0 K. These results demonstrate that using extremely-low-fluorine solutions is very attractive since the production rate can be largely increased due to the solutions’ robustness during pyrolysis retaining a remarkable quality of the grown films. Nevertheless, further optimization of the growth process is needed to improve the superconducting properties of the films.

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Section: Discussionsupporting

confidence: 74%

“…To our knowledge, this Tc value is the highest reported for SmBCO films deposited either on single crystals or on metallic tapes [35,37,39,40]. Additionally, the values at 77 K are among the highest reported for CSD-grown SmBCO film [39][40][41].…”

Section: Optimization Of the Growth Processmentioning

confidence: 60%

Rapid Pyrolysis of SmBa2Cu3O7-δ Films in CSD-MOD Using Extremely-Low-Fluorine Solutions

Cayado

Erbe

et al. 2020

Coatings

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“…In order to improve and optimize the current carrying capabilities of REBCO films and coated conductors for a certain application with a specific range in temperature and magnetic field, artificial pinning centres have to be introduced [2]. Besides mixing RE elements [17], transition metal doping [11], adjusting the stacking fault (SF) density [18] (here YBCO), multilayering and adjusting the Sm-Ba ratio [19], surface decoration [20], and irradiation [21], the best-investigated method is probably the insertion of non-superconducting nanoparticles (for reviews see [22][23][24]), such as perovskites or occasionally pyrochlores [25]. For SmBCO, the former has been intensively investigated by Yoshida et al on PLDgrown films [26].…”

Section: Introductionmentioning

confidence: 99%

Microstructure, pinning properties, and aging of CSD-grown SmBa₂Cu₃O_7−δ films with and without BaHfO₃ nanoparticles

Hänisch

Iida

Cayado

et al. 2022

Supercond. Sci. Technol.

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In order to improve the electrical transport properties of REBa2Cu3O7−δ nanocomposite films, SmBa2Cu3O7−δ films with and without BaHfO3 nanoparticles were grown by chemical solution deposition, and their microstructural and transport properties were investigated in a detailed study using transmission electron microscopy and transport measurements in magnetic fields up to 24 T. The optimization process of the crystallization step (temperature and oxygen partial pressure) as well as an aging effect, which is due to the release of trapped fluorine, are described. Critical temperature and critical current densities surprisingly improve initially during the aging. Due to the complex microstructure, the additional BaHfO3 nanoparticles have only a positive effect at low magnetic fields for our samples.

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Investigation of Pinning and Current-Carrying Capacity in 2G HTS Wires With Artificial Pinning Centers Obtained at Various Deposition Rates

Degtyarenko,

Ovcharov,

Vasiliev

et al. 2023

IEEE Trans. Appl. Supercond.

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La2Zr2O7 Doping Effects on MOD-SmBCO-Coated Conductors

Cited by 3 publications

References 12 publications

Rapid Pyrolysis of SmBa2Cu3O7-δ Films in CSD-MOD Using Extremely-Low-Fluorine Solutions

Rapid Pyrolysis of SmBa2Cu3O7-δ Films in CSD-MOD Using Extremely-Low-Fluorine Solutions

Microstructure, pinning properties, and aging of CSD-grown SmBa₂Cu₃O_7−δ films with and without BaHfO₃ nanoparticles

Investigation of Pinning and Current-Carrying Capacity in 2G HTS Wires With Artificial Pinning Centers Obtained at Various Deposition Rates

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La2Zr2O7 Doping Effects on MOD-SmBCO-Coated Conductors

Cited by 3 publications

References 12 publications

Rapid Pyrolysis of SmBa2Cu3O7-δ Films in CSD-MOD Using Extremely-Low-Fluorine Solutions

Rapid Pyrolysis of SmBa2Cu3O7-δ Films in CSD-MOD Using Extremely-Low-Fluorine Solutions

Microstructure, pinning properties, and aging of CSD-grown SmBa2Cu3O7−δ films with and without BaHfO3 nanoparticles

Investigation of Pinning and Current-Carrying Capacity in 2G HTS Wires With Artificial Pinning Centers Obtained at Various Deposition Rates

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Product

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Microstructure, pinning properties, and aging of CSD-grown SmBa₂Cu₃O_7−δ films with and without BaHfO₃ nanoparticles