Superconducting and transport properties of (Bi–Pb)–Sr–Ca–Cu–O with Cr2O3 additions

Abbasi, Haris Naeem; Taghipour, J.; Sedghi, H.

doi:10.1016/j.jallcom.2010.01.018

Cited by 23 publications

(18 citation statements)

References 18 publications

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“…Moreover, U(B) is increased by increasing the addition of BaSnO 3 nanoparticles up to 0.50 wt%, confirming the behavior of c T and calculated relative volume fraction versus BaSnO 3 nanoparticle addition. Similar enhancement in U(B) accompanied by an increase in both c T and the relative volume fraction was reported by Abbasi et al [11] for (Cr 2 O 3 ) x /BiPb-2223 samples. For x ≥ 0.75 wt%, the vortices creep more easily as the weak links are increased, whereas U(B) is decreased [45].…”

Section: Resultssupporting

confidence: 87%

“…This enhancement in T c is a result of the improvement in relative volume fraction, intergrain connectivity, or/and the change in oxygen content by adding BaSnO 3 nanoparticles. Similar enhancement in both T c and relative volume fraction was obtained by adding SnO 2 [9], Cr 2 O 3 [11], and NiFe 2 O 4 [12] nanoparticles into BiPb-2223 phase. Furthermore, the decrement in T c is attributed to the suppression of relative volume fraction for BiPb-2223 phase or mobile carrier trapping as a result of oxygen vacancy disorder [40].…”

Section: Resultssupporting

confidence: 65%

“…However, its decrease with x ≥ 0.75 wt% could be due to the ability of solid BaSnO 3 nanoparticles to prevent the spatial growth of BiPb-2223 phase. Similar behavior of the relative volume fraction for BiPb-2223 phase was obtained with the addition of different nanoparticles [9,11,38]. The lattice parameters a and c, calculated by using the least-squares method, are listed in Table 1 versus BaSnO 3 nanoparticle addition.…”

Section: Methodssupporting

confidence: 62%

“…The straightforward novel technique to enhance flux pinning is achieved by adding nanoparticles of different weight percentages into HTSC matrix. It was reported that the improvements of both flux pinning and c J are achieved by the addition of various oxide nanoparticles, such as ZrO 2 [7], Al 2 O 3 [8], SnO 2 [9], ZnO [10], Cr 2 O 3 [11], and NiFe 2 O 4 [12], into the selected BiPb-2223 phase.…”

Section: Introductionmentioning

confidence: 99%

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Magnetoresistivity studies for BiPb-2223 phase added by BaSnO3 nanoparticles

Barakat

Habanjar

2017

J Adv Ceram

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Co-precipitation method and conventional solid-state reaction technique were used to synthesize BaSnO 3 nanoparticles and (BaSnO 3 ) x /Bi 1.6 Pb 0.4 Sr 2 Ca 2 Cu 3 O 10+δ (0 ≤ x ≤ 1.50 wt%) samples, respectively. X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and electrical resistivity data were used to characterize BiPb-2223 phase added by BaSnO 3 nanoparticles. The relative volume fraction and superconducting transition temperature T c of BiPb-2223 phase were enhanced by increasing BaSnO 3 addition up to 0.50 wt%. These parameters were decreased with further increase of x. The resistive transition broadening under different applied DC magnetic fields (0.29-4.40 kG) was analyzed through thermally activated flux creep (TAFC) model and Ambegaokar-Halperin (AH) theory. Improvements of the derived flux pinning energy U, critical current density J c (0) estimated from AH parameter C(B), and upper critical magnetic field c2 (0) B , were recorded by adding BaSnO 3 nanoparticles up to 0.50 wt%, beyond which these parameters were suppressed. The magnetic field dependence of the flux pinning energy and critical current density decreased as a power-law relation, which indicated the single junction sensitivity between the superconducting grains to the applied magnetic field. Furthermore, the increase in the applied magnetic field did not affect the electronic thermal conductivity e  above the superconducting transition temperature and suppressed it below T c .

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Section: Resultssupporting

confidence: 87%

Section: Resultssupporting

confidence: 65%

Section: Methodssupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

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Magnetoresistivity studies for BiPb-2223 phase added by BaSnO3 nanoparticles

Barakat

Habanjar

2017

J Adv Ceram

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“…The Bi 1.6 Pb 0.4 Sr 2 Ca 2 Cu 3 O 10 (Bi-2223) high temperature superconductor have shown great promise for commercialization to be used in various applications due to its potential of carrying high current [1][2]. However, the weak pinning force of flux lines suppresses the transport current density in applied magnetic fields and high temperature.…”

Section: Introductionmentioning

confidence: 99%

Effect of nanosized Co0.5Ni0.5Fe2O4 on the transport critical current density of Bi1.6Pb0.4Sr2Ca2Cu3O10 superconductor

Hafiz¹,

Abd‐Shukor²

2014

AIP Conference Proceedings

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Abstract. The effects of nano-sized Co 0.5 Ni 0.5 Fe 2 O 4 addition on the superconducting and transport properties of Bi 1.6 Pb 0.4 Sr 2 Ca 2 Cu 3 O 10 (Bi-2223) in bulk form has been investigated. Bi-2223 superconductor was fabricated using coprecipitation method and 0.01 -0.05 wt% of Co 0.5 Ni 0.5 Fe 2 O 4 nanoparticles with average size of 20 nm were added into the samples. The critical temperature (T c ) and critical current density (J c ) of the samples were measured by using the four-point probe method, while the phase formation and microstructure of the samples were examined using x-ray diffraction and SEM respectively. It was found that J c of all samples added with Co 0.5 Ni 0.5 Fe 2 O 4 were higher than nonadded sample, with x = 0.01 wt. % sample showing the highest J c . This study showed that small addition of nanoCo 0.5 Ni 0.5 Fe 2 O 4 can effectively enhance the transport critical current density in Bi-2223 superconductor.

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