BaZrO3 (BZO) nanoparticles as effective pinning centers for YBa2Cu3O7 − δ (YBCO) superconducting thin films

Wang, Feng; Tian, Hao

doi:10.1007/s10854-019-00705-6

Cited by 6 publications

(3 citation statements)

References 24 publications

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“…MacManus-Driscoll et al pioneered BZO doping into YBCO films and significantly improved their flux pinning [111] . Based on the lowcost MOD method, Gutierrez et al prepared YBCO-BZO nanocomposite superconducting films with a randomly distributed orientation of BZO nanodots (as shown in Figure 9A and B) [112] . The angle-dependent [112] © 2007 Nature Publishing Group.…”

Section: Enhanced Flux Pinning Through Nano Second-phase Dopingmentioning

confidence: 99%

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Advances in second-generation high-temperature superconducting tapes and their applications in high-field magnets

Wang¹,

Dong²,

Huang³

et al. 2022

Soft Sci

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Second-generation high-temperature superconducting (2G-HTS) tapes based on REBa2Cu3O7-x (REBCO, RE: rare earth) materials enable the energy-efficient and high-power-density delivery of electricity, thereby promoting the development of clean energy generation, conversion, transmission, and storage. To overcome the weak grain-boundary connection and poor mechanical properties of these superconductors, a thin-film technology for epitaxy and biaxial textures based on flexible substrates has been developed. In recent years, high-quality 2G-HTS tapes have been produced at the kilometer scale and used in superconducting demonstration projects. This review first summarizes the development of HTS materials and briefly expounds the properties of REBCO superconducting materials. Subsequently, the structural characteristics, preparation methods, and current research progress of 2G-HTS tapes are given. In addition, the applications of REBCO tapes in constructing high-field magnets are also briefly reviewed.

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Section: Enhanced Flux Pinning Through Nano Second-phase Dopingmentioning

confidence: 99%

“…The inset is a fast Fourier transformation image, where the diffraction peaks of BZO and YBCO show a mutual epitaxy relationship. (C) Compared with the standard YBCO-TFA film (65 K) and NbTi wire (4.2 K), the Fp curves of YBCO/BZO nanocomposite films at 65 and 77 K were obtained[112] © 2007 Nature Publishing Group.…”

mentioning

confidence: 99%

Advances in second-generation high-temperature superconducting tapes and their applications in high-field magnets

Wang¹,

Dong²,

Huang³

et al. 2022

Soft Sci

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“…Intensive research on fabrication of BZO doped YBCO films was conducted in the past [7][8][9][10][11]. However, limited study of BZO doped YBCO bulks has been reported so far [5,12].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study on AC Susceptibility of YBa2Cu3O7−δ Added with BaZrO3 Nanoparticles Prepared via Solid-State and Co-Precipitation Method

et al. 2019

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Polycrystalline samples of YBa2Cu3O7−δ (Y-123) added with x mol% of BaZrO3 (BZO) nanoparticles (x = 0.0, 2.0, 5.0, and 7.0) were synthesized using co-precipitation (COP) and solid-state (SS) method. X-ray diffraction (XRD) patterns showed the formation of Y-123 and Y-211 as the major and minor phases, respectively. The samples prepared using COP method showed higher weight percentage of Y-123 phase (≤98%) compared to the SS samples (≤93%). A peak corresponding to BZO was also found in the samples added with BZO nanoparticles. The increasing intensity of the BZO peak as the BZO amount increased showed the increasing amount of the unreacted nanoparticles in the samples. Refinement of unit cell lattice parameters indicated that all the samples have an orthorhombic crystal structure and there is no orthorhombic-tetragonal phase transformation. As observed using scanning electron microscopy (SEM), all the samples showed randomly distributed grains with irregular shape. The average grain size for the pure sample prepared using COP method is smaller (0.30 µm) compared with that of the pure SS sample (1.24 µm). Addition of 7.0 mol% BZO led to an increase of average grain size to 0.50 μm and 2.71 μm for the COP and SS samples, respectively, indicating grain growth. AC susceptibility (ACS) measurement showed a decrease in the onset critical temperature, Tc-onset with BZO addition. Comparatively, Tc-onset for the COP samples is higher than that of the SS samples. The value of Josephson’s current, Io increased up to 2.0 mol% BZO addition, above which the Io decreased more drastically for the SS samples. The value of Io is 53.95 μA and 32.08 μA for the 2.0 mol% BZO added SS and COP samples, respectively. The decrease of Io is attributed to the distribution of BZO particles at the grain boundaries as also reflected in the drastic decrease of phase lock-in temperature, Tcj. As a result of smaller average grain size, the presence of more grain boundaries containing insulating BZO particles led to lower Io in the COP samples.

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Enhanced current carrying ability for GaBa2Cu3O7-x films deposited with negative bias by RF magnetic sputtering method

Xie

Lü

et al. 2020

J Mater Sci: Mater Electron

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BaZrO3 (BZO) nanoparticles as effective pinning centers for YBa2Cu3O7 − δ (YBCO) superconducting thin films

Cited by 6 publications

References 24 publications

Advances in second-generation high-temperature superconducting tapes and their applications in high-field magnets

Advances in second-generation high-temperature superconducting tapes and their applications in high-field magnets

Comparative Study on AC Susceptibility of YBa2Cu3O7−δ Added with BaZrO3 Nanoparticles Prepared via Solid-State and Co-Precipitation Method

Enhanced current carrying ability for GaBa2Cu3O7-x films deposited with negative bias by RF magnetic sputtering method

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