Nondestructive interactions of carbon nanotubes with Bi2Sr2CaCu2O8

Galván, D. H.; Shi, Li; Yuhasz, W. M.; Kim, J.H.; Maple, M. B.; Adem, E.

doi:10.1016/j.physc.2003.12.010

Cited by 15 publications

(6 citation statements)

References 17 publications

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“…5 where the micrograph indicates that the sample was formed of a highly dense nanotube concentration. Also, the nanotubes grew in a specific direction which could be used for a specific purpose as Galvan et al [10] pointed out, that the CN could serve as effective pinning centers for the fluxoids created when a superconductor like Bi 2 Sr 2 CaCu 2 O 8 was subject to an external magnetic field, with a subsequent enhancement of the critical density current J c . Furthermore, Fig.…”

Section: Resultsmentioning

confidence: 99%

High resolution TEM studies of carbon nanotubes produced by spray pyrolysis

2006

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Section: Resultsmentioning

confidence: 99%

High resolution TEM studies of carbon nanotubes produced by spray pyrolysis

2006

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“…Galván et al [22,23] using a novel technique to create columnar defects by embedding carbon nanotubes, which are of similar size and shape as the defects encountered in the superconductor, serve as effective pinning centers for the fluxoids that reside in the Bi 2 Sr 2 CaCu 2 O 8 superconductor, when they are subject to an external magnetic field with a subsequent enhancement of the critical current density. They obtained an enhancement of J c from 54.5 × 10 6 to 67.8 × 10 6 A/cm 2 .…”

Section: Resultsmentioning

confidence: 99%

Microstructural and chemical analysis performed by HRTEM and EDS on YBa2Cu3O7−x/Ag films irradiated with electrons

Galván

Hirata

Adem

2006

Materials Science and Engineering: B

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“…Recently, Galvan et al [37] showed experimental evidence of a minor improvement in J c by irradiation-generated CNT intercalation in BSCCO polycrystalline samples. Other studies have shown that since, from a geometric point of view, carbon nanotubes have a comparable form and dimension to the columnar defects induced in BSCCO by irradiation, it will be possible to improve the intergranular critical current density if CNTs and/or MWC-NTs can be embedded into a BSCCO matrix properly [37][38][39][40][41]. However, these studies also found that the reaction between oxygen and carbon is important, and in most cases, it emerges as a significant problem for the concordance of the results.…”

Section: Introductionmentioning

confidence: 99%

Role of Multi-Walled Carbon Nanotube Addition in Superconducting Properties of Bi₂Sr₂CaCu₂O_8+s Glass-Ceramic Superconductors

Yakinci

Çiçek

2023

Acta Phys. Pol. A

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In this work, pure and with 1, 3, 5, 10, and 15 wt% multi-walled carbon nanotube addition Bi2Sr2CaCu2O8+s glass-ceramic materials have been investigated in terms of thermal, structural, microstructural, electrical, and magnetic properties. Multi-walled carbon nanotubes with a purity of 96% were used to enhance electrical transport properties. Thermal properties have been examined using differential thermal analysis. According to the differential thermal analysis, the multi-walled carbon nanotube addition reduced the melting temperature and slightly increased the crystallization activation energy of the BiSrCaCuO material. X-ray analyses showed that all samples have tetragonal symmetry and did not change with addition, but a small change in the c-axis is observed. Scanning electron microscope analyses showed no significant morphological change. The effect of the additive on the resistivity measurements was found to be limited, and zero resistance temperature increased up to a level of 5 wt% addition and then decreased drastically for higher addition cases. The hole concentration of the samples was calculated, and it was found that there was a shift towards the over-doped region with the addition. For the transport critical current density measurements, the highest increase of about 30% was obtained for the sample with 5 wt% multi-walled carbon nanotube addition, but in high addition cases, significant losses were obtained. A similar situation occurred in magnetization versus magnetic field measurements, and the highest magnetization critical current density value obtained ẘas 4.1 × 10 6 A/cm 2 at 4.2 K in the 5 wt% multi-wall carbon nanotube added sample. topics: multi-wall carbon nanotube, high-temperature superconductors, BSCCO glass-ceramic, BSCCO superconductors

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Nondestructive interactions of carbon nanotubes with Bi2Sr2CaCu2O8

Cited by 15 publications

References 17 publications

High resolution TEM studies of carbon nanotubes produced by spray pyrolysis

High resolution TEM studies of carbon nanotubes produced by spray pyrolysis

Microstructural and chemical analysis performed by HRTEM and EDS on YBa2Cu3O7−x/Ag films irradiated with electrons

Role of Multi-Walled Carbon Nanotube Addition in Superconducting Properties of Bi₂Sr₂CaCu₂O_8+s Glass-Ceramic Superconductors

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Nondestructive interactions of carbon nanotubes with Bi2Sr2CaCu2O8

Cited by 15 publications

References 17 publications

High resolution TEM studies of carbon nanotubes produced by spray pyrolysis

High resolution TEM studies of carbon nanotubes produced by spray pyrolysis

Microstructural and chemical analysis performed by HRTEM and EDS on YBa2Cu3O7−x/Ag films irradiated with electrons

Role of Multi-Walled Carbon Nanotube Addition in Superconducting Properties of Bi2Sr2CaCu2O8+s Glass-Ceramic Superconductors

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Role of Multi-Walled Carbon Nanotube Addition in Superconducting Properties of Bi₂Sr₂CaCu₂O_8+s Glass-Ceramic Superconductors