Superconducting and mechanical properties of the bulk Bi(pb)SCCO system prepared via solid state and ammonium nitrate precipitation methods

Safran, Serap; Kılıçarslan, E.; Ozturk, H.; Alp, Meryem; Akdoğan, Mustafa; Asikuzun, E.; Öztürk, O.; Kılıç, Ahmet

doi:10.1016/j.physb.2015.05.006

Cited by 8 publications

(2 citation statements)

References 22 publications

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“…The superconducting grains and grain boundaries shield the applied magnetic field just below T c and T cJ , respectively. The shape of the transition on the in-phase (realpart) component plays a very important role on critical superconducting parameters of high-T c superconductors, a sharper transition indicates better interconnectivity of the grains [35]. In addition to perfect diamagnetism, the out-ofphase (imaginary part), χ″, displays features of coupling losses that are common behaviors of ceramic superconductors, generally showing a peak with decreasing temperature below T c which is ascribed to the AC loss of magnetic energy (dissipation) of the superconductor from the AC field [27,36].…”

Section: Ac Susceptibilitymentioning

confidence: 99%

Effect of using two different starting materials (nitrates and carbonates) and a calcination processes on the grain boundary properties of a BSCCO superconductor

Shamsodini

Salamati

Shakeripour

et al. 2019

Supercond. Sci. Technol.

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The influence of using two different starting materials (nitrates and carbonates) and calcination processes on the grain boundary properties of a BSCCO system have been investigated. Superconducting BSCCO samples with the chemical composition Bi1.64Pb0.34Sr2Ca2Cu3Oy were successfully fabricated by the sol–gel method. X-ray diffraction (XRD) and scanning electron microscopy analyses have been used to study the phase formation and microstructure of the prepared samples, respectively. The DC electrical resistivity, critical current density, and AC susceptibility of the samples were measured. The XRD result showed that one can improve the phase formation of the Bi-2223 system by choosing suitable starting materials and the temperature of calcination. AC susceptibility and DC electrical resistivity revealed that the synthesis process improves the grain boundaries. The critical current density (measured in 77 K) increased from 100 A cm−2 to about 145 A cm−2. In fact, the critical current of the sample fabricated with a carbonates group and calcinated at 750 °C obtained 100 A cm−2, while a sample that was fabricated with a nitrates group and calcinated at 790 °C had the critical current of 145 A cm−2.

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Section: Ac Susceptibilitymentioning

confidence: 99%

Effect of using two different starting materials (nitrates and carbonates) and a calcination processes on the grain boundary properties of a BSCCO superconductor

Shamsodini

Salamati

Shakeripour

et al. 2019

Supercond. Sci. Technol.

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show abstract

“…The sol-gel process allows a significant decrease in processing temperature. Recent studies have shown that the preparation method and its sintering temperature and time play a vital role in the evolution of the phase structure and the microstructure in polycrystalline BSCCO materials, which influence their superconducting properties significantly [31][32][33][34][35][36][37][38]. With this background, highquality Pb-doped BSCCO samples were synthesized using a citratebased solgel method and the effects of sintering temperature and time on the phase evolution and superconducting properties were examined.…”

Section: Introductionmentioning

confidence: 99%

Effects of the Sintering Conditions on the Structural Phase Evolution and T C of Bi1.6Pb0.4Sr2Ca2Cu3O7 Prepared Using the Citrate sol–gel Method

Darsono

Yoon

Raju

2016

J Supercond Nov Magn

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The effects of the sintering temperature and time on the phase evolution, microstructure and superconducting properties in a typical Pb-doped Bi-Sr-Ca-Cu-O (BSCCO) system, Bi 1.6 Pb 0.4 Sr 2 Ca 2 Cu 3 O 7 , were examined systematically by X-ray diffraction (XRD), thermo gravimetricdifferential thermal analysis, scanning electron microscopy, and four-point probe resistivity measurements. The samples were prepared by the citrate based sol-gel method using their corresponding nitrates as the starting materials. The samples were sintered at different temperatures, ranging from 820 to 860 • C with different dwell-times (24-120 h). The results showed that the sintering temperature had a significant effect on the structure and superconducting transition temperature ( TC ). XRD showed that when the samples were heat treated at 550 • C, the BSCCO 2201 phase appeared, whereas peaks corresponding to the BSCCO 2112 phase were dominant at 800 • C. At 840 • C, only the peaks corresponding to the BSCCO 2212 and 2223 phases were detected with no impurities. A strong correlation was observed between the structural data and TC ; the samples sintered at 840 • C for 120 h exhibited the maximum T onset C (115.7 K).

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Effect of re-pelletization on structural, mechanical and superconducting properties of BSCCO superconductors

Safran

Kılıç

Öztürk

2016

J Mater Sci: Mater Electron

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Superconducting and mechanical properties of the bulk Bi(pb)SCCO system prepared via solid state and ammonium nitrate precipitation methods

Cited by 8 publications

References 22 publications

Effect of using two different starting materials (nitrates and carbonates) and a calcination processes on the grain boundary properties of a BSCCO superconductor

Effect of using two different starting materials (nitrates and carbonates) and a calcination processes on the grain boundary properties of a BSCCO superconductor

Effects of the Sintering Conditions on the Structural Phase Evolution and T C of Bi1.6Pb0.4Sr2Ca2Cu3O7 Prepared Using the Citrate sol–gel Method

Effect of re-pelletization on structural, mechanical and superconducting properties of BSCCO superconductors

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