Sintering process and characterization of the SmBaCuO/Al composite

Nunes, L. G. de S.; Passos, C. A. C.; Orlando, M. T. D.; Chagas, J.V.S.; Salustre, M. G. de M.; Galvão, E.S.

doi:10.1016/j.physc.2023.1354243

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…Studies, particularly on Type II superconducting ceramic compounds (following the discovery of ceramic superconducting material La2-xBaxCuO4 [10,11]) have garnered significant attention in the materials research community. Among the Type II superconducting ceramic compounds, the Bi-based ceramic family, with its main three participants, possesses the capability of carrying larger critical current density, higher critical transition temperature (onset and offset), lower energy loss, minimal power losses, relatively larger critical current (≈10 7 A/cm 2 ), and a higher magnetic field-carrying capacity (≥100 T at 35 K) [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Dependence of General Mechanical Properties of Bi-2212 Ceramics on Calcium Oxide

2023

International Conference on Innovative Academic Studies

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In this study, we investigated the role of calcium oxide (CaO) impurity addition and applied micro-indentation test loads on some mechanical performance parameters including elastic moduli (E), shear (G) modulus and resilience (Ur) of Bi2.1Sr2.0Ca1.1Cu2.0Oy ceramics using Vickers hardness test measurements. The tests were conducted in test forces ranges from 0.245 N to 2.940 N. Additionally, experimental findings reveal the relationship between Vickers results and test forces applied, and specifically identify the impact of Ca ion impurity on the elastic modulus for Bi-2212 ceramics. All experimental findings indicated a strong dependence of the examined mechanical performance quantities on both the loads applied and the amount of calcium oxide impurity addition. As the level of calcium impurity addition increased in bulk Bi-2212 ceramic compounds, it was noted that mechanical performances are systematically deteriorated due to an increase in microvoids, strains, prevalent defects, bonding problems, and crystallinity faults based on interaction between adjacent layers of ceramics. Furthermore, increasing the applied test force damaged the mechanical performances of Bi-2212 ceramics due to their granular structure. Thus, it was indicated that the pure sample has the best crystal quality while the Bi-2212 ceramic prepared with the maximum CaO addition amount of x=0.1 has the maximum crystal structure problems. In this regard, the former ceramic exhibited much stronger mechanical performance quantities compared to the other prepared ceramics. In other words, the pure ceramic material showed the least response and sensitivity to the microindentation test load. In summary, the idea of adding calcium oxide impurity fails to improve the mechanical performance, durability of the tetragonal phase, and stabilization of the Bi-2212 superconducting system.

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Section: Introductionmentioning

confidence: 99%

Dependence of General Mechanical Properties of Bi-2212 Ceramics on Calcium Oxide

2023

International Conference on Innovative Academic Studies

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Improvement of superconducting, morphological, and flux pinning ability of YBa₂Cu₃O_7−y matrix with oxygen and Mn₂O₃ impurity

Kurtul,

Yildirim,

Turgay

et al. 2024

Phys. Scr.

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In the current work, the influence of oxygen and Mn2O3 impurity levels intervals 0.00≤x≤0.30 on various key properties such as electrical resistivity, superconducting, flux pinning ability, stabilization of ceramic system, and morphological properties of YBa2Cu3O7-y (Y-123) superconductor were examined by electrical resistivity, critical current density, and scanning electron microscopy (SEM), electron dispersive X-ray (EDX) measurements. The EDX test results indicated that all the Y-123 ceramics produced possessed different composition distributions on the sample surface. SEM photomicrographs also confirmed the improvement in the appearance of surface morphology and crystallinity quality of the YBa2Cu3O7-y system. Moreover, the development in the interaction quality between grains, pinning ability and strength quality of 2D coupled vortices was obtained with the oxygen ambient and optimum manganese impurity addition highly dispersing throughout the intra grain and inter-grain boundary couplings due to the increase in the artificial flux pinning nucleation sites in the Y-123 system. Thus, the best sample with the highest Jc value of 98 A/cm2 showed the most resistance to the applied magnetic field and current. Similarly, the same sample exhibited the greatest superconductive offset (98.320 K) and onset (100.504 K) temperatures values based on the development of the Cu-O coordination and stability of the crystal structure. In conclusion, this comprehensive study based on the analysis of oxygen and Mn2O3 impurity addition mechanism through the YBa2Cu3O7-y ceramic matrix may open a new and applicable field for advanced engineering, heavy industry technology and large-scale applications.

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Sintering process and characterization of the SmBaCuO/Al composite

Cited by 2 publications

References 22 publications

Dependence of General Mechanical Properties of Bi-2212 Ceramics on Calcium Oxide

Dependence of General Mechanical Properties of Bi-2212 Ceramics on Calcium Oxide

Improvement of superconducting, morphological, and flux pinning ability of YBa₂Cu₃O_7−y matrix with oxygen and Mn₂O₃ impurity

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Sintering process and characterization of the SmBaCuO/Al composite

Cited by 2 publications

References 22 publications

Dependence of General Mechanical Properties of Bi-2212 Ceramics on Calcium Oxide

Dependence of General Mechanical Properties of Bi-2212 Ceramics on Calcium Oxide

Improvement of superconducting, morphological, and flux pinning ability of YBa2Cu3O7−y matrix with oxygen and Mn2O3 impurity

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Product

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Improvement of superconducting, morphological, and flux pinning ability of YBa₂Cu₃O_7−y matrix with oxygen and Mn₂O₃ impurity