Improving the Physical Properties of (Bi, Pb)-2223 Phase by SnO2 Nano-particles Addition

Abou‐Aly, A. I.; Gawad, M. M. H. Abdel; Awad, R.; G-Eldeen, I.

doi:10.1007/s10948-011-1171-z

Cited by 89 publications

(32 citation statements)

References 31 publications

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“…Since the discovery of Bi-based high-temperature superconductors [1], which are among the most promising materials for technological and industrial applications, many experimental studies have been performed [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] in order to improve their critical temperature (Tc), critical current density (Jc), and better understand the structural properties of the system. The BSCCO families can be described by the Bi 2 Sr 2 Ca n-1 Cu n O 2n+4+y general formula, where n=1, 2 and 3.…”

Section: Introductionmentioning

confidence: 99%

Improvement of superconducting properties in Na-doped BSCCO superconductor

Özçelık

Gürsul

Sotelo

et al. 2014

J Mater Sci: Mater Electron

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In this study, the effect of Na substitution on the structural, electrical and magnetic properties of Bi 2 Sr 2 Ca 1-x Na x Cu 2 O 8+y superconductor with x=0.0, 0.05, 0.075, 0.1, 0.15, and 0.2 has been investigated. The effects of partial replacement of Na for Ca have been investigated by electrical resistivity (ρ-T), scanning electron microscopy (SEM), X-ray diffraction (XRD), and magnetic characterizations. XRD results have shown that the Bi-(2212) phase is the major one independently of the Na-concentration. SEM results indicate that the microstructure of samples is improved with increasing of Na-contents. From the electrical resistivity measurements it has been found that Tc is slightly higher than 92 K for Na-concentrations up to 0.20. Moreover, this trend is maintained in the magnetic measurements where the hysteresis loops are increased with increasing Na-concentrations. The maximum calculated Jc, using Bean's model, is around 10*10 6 A/cm 2 at 10 K and ∼ 1000 Oe for the 0.075 Na doped samples.

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Section: Introductionmentioning

confidence: 99%

Improvement of superconducting properties in Na-doped BSCCO superconductor

Özçelık

Gürsul

Sotelo

et al. 2014

J Mater Sci: Mater Electron

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“…Ca 2 PbO 4 and CaPbO 3 phases were observed as impurity phases. enhanced the high-T c phase due to the intercalation of the two extra Ca-CuO bilayers into the CuO-Ca-CuO blocks of Bi-2212 structure [5]. This enhancement is supported by the electrical resistance-temperature measurements, where the T c zero increased from 97 to 100 K as x increased from 0.01 to 0.15 wt.…”

Section: Resultsmentioning

confidence: 74%

“…The enhancement of J c is may be due to the increase in flux pinning as a result of existence of the effective artificial pinning centers in the (Bi, Pb)-2223 produced by the addition of nano PbO [5][6]10]. …”

Section: Resultsmentioning

confidence: 99%

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Effect of nanosized PbO on the electrical transport properties of (Bi1.6Pb0.4)Sr2Ca2Cu3O10 superconductor

Yahya

Abd‐Shukor²

2013

AIP Conference Proceedings

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Abstract. The effect of nanosized PbO additions on the superconducting properties of (Bi, Pb)-2223(PbO)x (x = 0 -0.15 wt. %) prepared by the co-precipitation method was studied. The structure and the microstructure of samples were examined by powder XRD and SEM, respectively. The transport critical current density (J c ), onset transition temperature (T c onset ) and zero resistance temperature (T c zero ) were determined by using four-probe method. It was observed that PbO additions enhanced J c for all added samples. The x = 0.05 wt. % sample showed the highest J c (19.3 and 11.3 A/cm 2 at 30 and 77 K, respectively) This study showed that the addition of PbO, as a result of existence of the effective artificial pinning, provided extra flux pinning centers in the (Bi, Pb)-2223 superconductor.

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“…[1] and the subsequent work reported by Maeda et al [2] in Bi 2 Sr 2 Ca n-1 Cu n O x (n=1,2,3) superconductor, a lot of studies have been performed in order to improve the physical properties of BSCCO system.The production of bulk BSCCO superconductor with a single phase (Bi-2223 or Bi2212) with high electrical transport capacity above liquid nitrogen temperature of 77 K is of great interest for practical applications like wires, tapes and thin films [3][4][5][6]. In particular, BSCCO materials have demonstrated that they are suitable for many transport applications when they are properly processed in order to obtain a good grain orientation [7][8].…”

Section: Introductionmentioning

confidence: 99%

Relationship Between Growth Speed and Magnetic Properties in Bi-2212/Ag Textured Composites

Özkurt

Madre

Sotelo

et al. 2012

J Supercond Nov Magn

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In this paper, the magnetic properties of Bi 2 Sr 2 CaCu 2 O x /3 wt.%Ag textured composite materials prepared by a LFZ melting technique at different growth speeds (5, 15, 30 and 60mm/h) are presented. X-ray diffraction patterns showed that in all cases the Bi-2212 phase is the major one. The magnetization measurements have been carried out as a function of the magnetic field up to 10 kOe. J c values of the samples calculated using Bean's model indicate that the different growth speeds have significant effect on the J C values. It has been found that the maximum critical density J C , 4.42x10 5 A/cm 2 at 10K, has been obtained for the 15 mm/h grown sample.

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Improving the Physical Properties of (Bi, Pb)-2223 Phase by SnO2 Nano-particles Addition

Cited by 89 publications

References 31 publications

Improvement of superconducting properties in Na-doped BSCCO superconductor

Improvement of superconducting properties in Na-doped BSCCO superconductor

Effect of nanosized PbO on the electrical transport properties of (Bi1.6Pb0.4)Sr2Ca2Cu3O10 superconductor

Relationship Between Growth Speed and Magnetic Properties in Bi-2212/Ag Textured Composites

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