Intergranular properties of polycrystalline YBa2Cu3O7−δ superconductor added with nanoparticles of WO3 and BaTiO3 as artificial pinning centers

Alotaibi, Sarah A.; Slimani, Y.; Hannachi, E.; Almessiere, M.A.; Yasin, Ghulam; Al-qwairi, Fatimah O.; Iqbal, Munawar; Azzouz, F. Ben

doi:10.1016/j.ceramint.2021.08.336

Cited by 13 publications

(2 citation statements)

References 37 publications

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“…The AC susceptibility measurement is extensively employed as a non-destructive and effective tool for understanding and characterization of the intra-grain and inter-grain components in the polycrystalline high-temperature superconductors [40,45,55,[68][69][70]. The plots of the real part of AC susceptibility, χ, and its derivative, dχ́ /dT, versus temperature at a frequency of 300 Hz and the AC background magnetic eld of 250 A/m, for different composite samples are displayed in Figs.…”

Section: Tablementioning

confidence: 99%

Thermally activated flux flow and inter-granular coupling properties in (Bi, Pb)-2223 superconductor added with ZnO nanoparticles

Aftabi

Mozaffari

2022

Preprint

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In high-temperature ceramic superconductors, vortices motion is caused by the strong thermal fluctuations due to the thermally activated flux flow (TAFF). The TAFF impedes the transport properties and critical current density of superconductors. It has been reported that the addition of nanoscale impurities can create artificial pining centers that may improve flux pinning capability and inter-granular coupling in ceramic superconductors. Here, the effects of different amounts (0.0 to 1.0 wt%) of ZnO nanoparticles on the TAFF behavior and zero temperature activation energy of the Bi1.6Pb0.4Sr2Ca2Cu3O10+δ superconducting phase have been studied using the modified TAFF model. Moreover, the impacts of the additive on the inter-granular traits and the Josephson coupling energy of the superconducting phase have been investigated using AC susceptibility measurements. Results indicate that the vortex phases for all composites are divided into three vortex regions, but the temperature ranges in each region are different for various amounts of the additives. A vortex glass to vortex liquid transition at Tg was obtained from the analysis. The vortex liquid region is divided into the critical and TAFF ones. It was found that the TAFF region is shifted to the higher temperatures and gets narrower by adding the ZnO nanoparticles up to 0.2 wt%. The Tg increases from 93.8 K for the ZnO free sample to 101.0 K for the sample with 0.2 wt% ZnO nanoparticles. In addition, the zero temperature activation energy (U0/KB) increases from ~ 0.4×105 K for the ZnO free sample to ~ 1.4×105 K for the sample with 0.2 wt% ZnO nanoparticles and then decreases for higher values of additive. Moreover, it was found that the Josephson coupling energy Ej increases from ~ 0.037 eV for ZnO free sample to ~ 0.130 eV for the sample with 0.2 wt% additives. These results point out the significant improvement of the flux pinning capability and inter-granular coupling of the Bi1.6Pb0.4Sr2Ca2Cu3O10+δ superconducting phase with the addition of the 0.2 wt% ZnO nanoparticles.

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Section: Tablementioning

confidence: 99%

Thermally activated flux flow and inter-granular coupling properties in (Bi, Pb)-2223 superconductor added with ZnO nanoparticles

Aftabi

Mozaffari

2022

Preprint

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“…In article [6], a study was carried out on Y 1 Ba 2 Cu 3 O 7-δ (YBCO) superconductors, in which BaTiO 3 and WO 3 particles were introduced as artificial pinning centers. These pinning centers play an important role in improving the superconducting properties of the material.…”

Section: Introductionmentioning

confidence: 99%

Effect of Doping on Phase Formation in YBCO Composites

Tolendiuly,

Sovet,

Fomenko

2023

J. Compos. Sci.

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This article discusses an effective method for obtaining superconducting composites based on Y1Ba2Cu3O7-δ (YBCO) by optimizing the total preparation time in comparison with similar scientific works while searching for effective modifying micro-additives. YBCO-based composites were doped with microparticles of aluminum, nickel, and iron. It was established that the initial ratio of green components, heat treatment, and holding time directly affect the qualitative and quantitative formation of the useful superconducting phase Y123, which in turn affects the basic superconducting properties of the final material.

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Description and the Parameters of Electrical Cables

Martinka

2022

SpringerBriefs in Fire

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Intergranular properties of polycrystalline YBa2Cu3O7−δ superconductor added with nanoparticles of WO3 and BaTiO3 as artificial pinning centers

Cited by 13 publications

References 37 publications

Thermally activated flux flow and inter-granular coupling properties in (Bi, Pb)-2223 superconductor added with ZnO nanoparticles

Thermally activated flux flow and inter-granular coupling properties in (Bi, Pb)-2223 superconductor added with ZnO nanoparticles

Effect of Doping on Phase Formation in YBCO Composites

Description and the Parameters of Electrical Cables

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