The Effect of CdO Nanoparticles on the Structureand Magnetic Propertiesof Bi 1 . 6 4 Pb 0 . 3 6 Sr 2 Ca 2 − x Cd x Cu 3 O y Superconductors

Ghahfarokhi, S. E. Mousavi; Hoseenzadeh, Nahid; Shoushtari, Morteza Zargar

doi:10.1007/s10948-014-2589-x

Cited by 10 publications

(5 citation statements)

References 29 publications

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“…CdO nanoparticles have attracted the interest of researchers due to their low cost, chemical stability, and favorable optical, magnetic and structural properties [16]. Besides their numerous applications in the fields of electronics [17] and pharmacy [18], several pieces of research have investigated the influence of the addition of CdO nanoparticles on the superconducting properties of high Tc superconductors [19,20]. For instance, Ghahfarokhi et al [19] studied the influence of CdO addition on (Bi, Pb)−2223 superconducting phase.…”

Section: Dos Santos Et Almentioning

confidence: 99%

“…Besides their numerous applications in the fields of electronics [17] and pharmacy [18], several pieces of research have investigated the influence of the addition of CdO nanoparticles on the superconducting properties of high Tc superconductors [19,20]. For instance, Ghahfarokhi et al [19] studied the influence of CdO addition on (Bi, Pb)−2223 superconducting phase. The volume fraction of the (Bi-Pb)−2223 phase was enhanced for low CdO content.…”

Section: Dos Santos Et Almentioning

confidence: 99%

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Investigation of the structural and electrical properties of CdO/(Bi, Pb)−2212 superconducting phase

et al. 2022

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This investigation reports the effect of the addition of CdO nanoparticles on the (Bi,Pb)-2212 superconducting phase. The superconducting samples of general formula (CdO)x Bi1.6 Pb0.4 Sr1.9 Ca1.1Cu2.1 O8 (x = 0.00, 0.01, 0.02, 0.05, and 0.1 wt%) are synthesized using the conventional solid-state reaction technique. Powder X ray diffraction analysis confirms the formation of a single-phase orthorhombic Bi-2212. The variations in the lattice parameters are explained based on the Jahn Teller distortion induced by the increase in the oxygen content owing to the addition of the CdO nanoparticles. The increase in the oxygen content is confirmed via Idiometric titration analysis. The grain morphology is investigated using scanning electron microscopy (SEM). The effect of CdO addition in enhancing grains connectivity by the filing of pores and voids is revealed. Fourier transform infrared (FTIR) spectroscopy is conducted to analyze the functional groups, based on the effect of calcination temperature and CdO addition. Dc-electrical resistivity measurements and I-V characteristics show an enhancement of the superconducting transition temperature (Tc) and the critical current density (Jc) with CdO addition up to x=0.05 wt%, followed by a further decrease. By analyzing the results of the X-ray photoelectron spectroscopy (XPS), the variations of the superconducting properties are explained based on the preferred substitution of Pb2+ ions in the Bi3+ or Cu2+ sites induced by the variations in the oxygen content generated by the addition of CdO nanoparticles.

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Section: Dos Santos Et Almentioning

confidence: 99%

Section: Dos Santos Et Almentioning

confidence: 99%

Investigation of the structural and electrical properties of CdO/(Bi, Pb)−2212 superconducting phase

et al. 2022

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“…CdO nanoparticles are among the transparent conductive oxide (TCO) nanoparticles that the researchers are interested in because of their bene cial properties [27][28][29]. The effects of adding CdO nanoparticles to high-temperature superconductors on their superconducting properties have been studied [30,31]. The structural, optical, and magnetic signatures of the host CdO matrix were found to be improved by transition metal doping, allowing for novel applications.…”

Section: Introductionmentioning

confidence: 99%

Thermal and Mechanical Investigations of (Bi, Pb)-2212 Superconductor Added with Different Oxide Nanoparticles

Matar,

Basma,

Abbas

et al. 2024

Materials Performance and Characterization

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In this study, superconducting samples of type Bi 1.6 Pb 0.4 Sr 1.9 Ca 1.1 Cu 2.1 O y ,(Bi, Pb))-2212, added with CdO, CdMnO, and CdFeO nanoparticles, were synthesized using a solid state reaction technique. The samples were examined using X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). Thermogravimetric analysis (TGA) was utilized to evaluate the thermal stability of the pure sample throughout the different stages of the phase formation and the effect of the nanoparticles addition. The weight loss/gain by the three additions is related to the excess of oxygen, con rmed via Iodometric titration analysis and from the ndings of oxygen diffusion energy using TGA data. Vickers microhardness measurements were conducted at various applied loads (0.49-9.8 N). All of the prepared samples displayed a typical 'indentation size effect' (ISE) behavior based on the H V measurements. It was found that the optimum addition of nanoparticles, for increasing the microhardness of the (Bi, Pb)-2212 phase, was at x = 0.05 wt. %. Furthermore, various mechanical properties as Elastic modulus (E), yield strength (Y), fracture toughness(K), and brittleness index (B) were calculated for three additions of the samples studied. As for the theoretical examination of H V in the saturation limit regions, the indentationinduced cracking (IIC) model wins the comparison.

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“…Pb addition results in the creation of a superconducting solid solution of Bi 2−x Pb x Sr 2 Ca 2 Cu 3 O 10 by partial substitution of Bi [10][11][12][13]. Recently, the effect of nano addition has been extensively studied to improve the superconducting properties and to enhance the pinning force for BSCCO using nanoelements, nano-oxides, and nano-compounds [14][15][16][17][18][19][20]. The critical current density Jc is a crucial parameter of hightemperature superconductor for a variety of possible applications.…”

Section: Introductionmentioning

confidence: 99%

Improvement of superconducting parameters of Bi1.6Pb0.4Sr 2Ca 2Cu 3O10+ δ added with Au nanoparticles

Jassim¹

2018

IJP

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Samples of Bi1.6Pb0.4Sr2Ca2Cu3O10+δ superconductor were prepared by solid-state reaction method to study the effects of gold nanoparticles addition to the superconducting system, Nano-Au was introduced by small weight percentages (0.25, 0.50, 0.75, 1.0, and 1.25 weight %). Phase identification and microstructuralcharacterization of the samples were investigated using XRD and SEM. Moreover, DC electrical resistivity as a function of the temperature, critical current density Jc, AC magnetic susceptibility, and DC magnetization measurements were carried to evaluate the relative performance of samples. x-ray diffraction analysis showed that both (Bi,Pb)-2223 and Bi-2212 phases coexist in the samples having an orthorhombic crystal structure. Both the onset critical temperatures Tc (onset) and zero electrical resistivity critical temperatures Tc (R=0) of the samples were determined from the DC electrical resistivity measurements. An improvement of the superconducting transition temperature of 6.36 % was obtained with increasing Au nanoparticles to x = 1.25 wt.%, while the critical current density is improved by 220 %. AC magnetic susceptibility measurement showed that the diamagnetic fraction and intergranular coupling of the x = 1.25 wt.% sample are greater than those of the others. The variation of magnetization with temperature (M-T curve) of the samples was measured by cooling the sample in zero fields (ZFC) and an applied field of 10 Oe (FC). The results of AC magnetic susceptibility and DC magnetization measurements were in good agreement with DC electrical resistivity measurement.

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The Effect of CdO Nanoparticles on the Structureand Magnetic Propertiesof Bi 1 . 6 4 Pb 0 . 3 6 Sr 2 Ca 2 − x Cd x Cu 3 O y Superconductors

Cited by 10 publications

References 29 publications

Investigation of the structural and electrical properties of CdO/(Bi, Pb)−2212 superconducting phase

Investigation of the structural and electrical properties of CdO/(Bi, Pb)−2212 superconducting phase

Thermal and Mechanical Investigations of (Bi, Pb)-2212 Superconductor Added with Different Oxide Nanoparticles

Improvement of superconducting parameters of Bi1.6Pb0.4Sr 2Ca 2Cu 3O10+ δ added with Au nanoparticles

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