Structural and superconducting properties of low-density Bi(Pb)-2223 superconductor: Effect of Eu2O3 nanoparticles addition

Nurbaisyatul, E.S.; Hashim, Ahmad Hariza; Ibrahim, Norazila; Saipuddin, Siti Fatimah

doi:10.1016/j.cryogenics.2021.103353

Cited by 15 publications

(5 citation statements)

References 42 publications

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“…When Sm and La contents grow (x > 0.025), J c falls and reaches 427 A/cm 2 for x = 0.10 and 527 A/cm 2 for x = 0.10. This is attributable to several causes, including a rise in impurity content, the occurrence of voids among grains, grain alignment disorder, a reduction in the volume fraction of (Tl, Hg)-1223 superconductors, and a decrease in inter-grain connection [26,41].…”

Section: Critical Current Density (J C ) Measurementsmentioning

confidence: 99%

Superconducting and Mechanical Properties of the Tl0.8Hg0.2Ba2Ca2Cu3O9−δ Superconductor Phase Substituted by Lanthanum and Samarium Fluorides

Khattar,

Anas,

Awad

et al. 2023

Condensed Matter

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This study investigated the impact of samarium and lanthanum fluorides (SmF3 and LaF3) on the physical and mechanical properties of Tl0.8Hg0.2Ba2Ca2−xRxCu3O9−δ−yFy superconducting phases (specifically the (Tl, Hg)-1223 phase), where R = Sm and La, with 0.00 ≤ x ≤ 0.10. The superconducting samples were synthesized using the solid-state reaction method. X-ray diffraction (XRD) verified the formation of the (Tl, Hg)-1223 phase without altering its tetragonal structure. Scanning electron micrographs (SEM) reveal the improvement of the grain size and inter-grain connectivity as Sm and La contents increased up to x=0.025. The electrical properties of (Tl, Hg)-1223 were studied using I-V and electrical resistivity measurements. Improved superconducting transition temperature (Tc) and transport critical current density (Jc) were observed up to x=0.025, beyond which they decreased substantially. Vickers microhardness (Hv) measurements were performed at room temperature to investigate their mechanical performance with various applied loads (0.49–9.80 N) and times (10–90 s). For both substitutions, the mechanical properties were enhanced up to an optimal value at x=0.025. All samples exhibited normal indentation size effect (ISE) behavior. The proportional sample resistance (PSR) model best explained Hv values among five theoretical models. Dislocation creep was the primary creep mechanism in the samples, according to indentation creep studies.

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Section: Critical Current Density (J C ) Measurementsmentioning

confidence: 99%

Superconducting and Mechanical Properties of the Tl0.8Hg0.2Ba2Ca2Cu3O9−δ Superconductor Phase Substituted by Lanthanum and Samarium Fluorides

Khattar,

Anas,

Awad

et al. 2023

Condensed Matter

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“…The widespread explorations for new superconductors have been carried out to investigate the finest materials with high critical temperature (T C). Even after passing hundred years of this discovery, the superconductivity is still a mystery, for this reason the scientists are searching innovative superconducting materials [13]. Superconducting materials are divided into three categories which are [14];…”

Section: Superconducting Materialsmentioning

confidence: 99%

“…Apart from the BSCCO scheme, there are several categories of oxides high temperature superconductors like Y-Ba-Cu-O (YBCO family) and T1 originated family T1-Ba-Ca-Cu-O are also vital for technical usages. The YBCO family has exceptional features that lead them towards prominent electromagnetic applications like particle accelerators, power transmission, electronic motors and magnetic levitation gadgets [13]. Also, the T1 family is composed of various phases such as T1 -2212, T1 -1223 and T1 -2223 having TC above 120 K but have incapability to carry current in wires and electro magnetic tapes.…”

Section: Figure 5 [14]: Structure Of Copper Oxides (Cuprates)mentioning

confidence: 99%

“…Wu. I. J (2001) studied that the values of JC for porous YBCO films are greater at least 50 percent as compare to free pores YBCO films even for wide films [13]. The advantage of porous structure over the porous free structure is that it has better contact capability with samples by the application of silver conductive paint which then submerge into the sample materials, creating profound contact instead of pertaining just on the plane.…”

Section: Figure 5 [14]: Structure Of Copper Oxides (Cuprates)mentioning

confidence: 99%

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Properties and Types of Superconductors

Hasan

2022

Superconductors

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The disappearing of electrical resistance below the critical temperature (Tc) is known as superconductivity discovered by Kamerlingh Onnes in 1911. Superconductors are consisted of two categories namely type I and type II also called soft and hard superconductors, respectively. Type I superconductors obey the Meissner effect while type II superconductors do not. The superconducting compounds are divided into three categories, (i) Metal based systems, (ii) Copper oxides (cuprates) and (iii) Iron based superconductors (IBSC). Metal-based superconductors are combination of cubic crystal configuration named the A15 structure. Initial IBSC was revealed in 2006 for LaFePO; nevertheless, Tc stayed as small as ~4 K. High-Tc compounds were then expressed for LaFeAsO1–xFx by means of Tc = 26 K in 2008. Superconductors have considerable positions in the lower temperature magnet applications such as MRI, nuclear magnetic resonance and superconducting quantum interference.

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“…While the decrease in J c is attributed to the excessive addition of CdO induces agglomerations between the grains instead of the grain boundaries and voids. This deteriorates the intergranular critical current density [67].…”

Section: Electrical Resistivity Measurementsmentioning

confidence: 99%

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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Structural and superconducting properties of low-density Bi(Pb)-2223 superconductor: Effect of Eu2O3 nanoparticles addition

Cited by 15 publications

References 42 publications

Superconducting and Mechanical Properties of the Tl0.8Hg0.2Ba2Ca2Cu3O9−δ Superconductor Phase Substituted by Lanthanum and Samarium Fluorides

Superconducting and Mechanical Properties of the Tl0.8Hg0.2Ba2Ca2Cu3O9−δ Superconductor Phase Substituted by Lanthanum and Samarium Fluorides

Properties and Types of Superconductors

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

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