Preparation and characterization of some superconductor/polymer composites

Chen, Teng‐Ming; Hu, Yuyang

doi:10.1016/0921-4534(91)92043-b

Cited by 10 publications

(4 citation statements)

References 2 publications

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“…However, there still exists a great difficulty in preparing these ceramic superconductors in usable form such as wires, coils or as flexible shielding sheets due to their inherent brittleness, compositional instability and susceptibility to environmental degradation. One of the solutions to this problem is the introduction of flexible materials (e.g., polymers) as a structural support and a protective matrix into powder oxide superconductor filler to form a composite with good mechanical flexibility [2][3][4]. Polymer matrices provide great mechanical integrity and chemical stability.…”

Section: Introductionmentioning

confidence: 99%

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High-T_csuperconductor/linear low density polyethylene (LLDPE) composite materials for diamagnetic applications

Bhadrakumari¹,

Predeep²

2006

Supercond. Sci. Technol.

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A series of composite samples of YBa2Cu3O7−x and linear low density polyethylene (Y-123/LLDPE) with volume percentage ranging from 0 to 75% was prepared. The crystallinity of the composites was studied using x-ray diffraction (XRD) patterns. It is found that the percentage of crystallinity in the composite samples increases with increasing volume of the LLDPE. A four-phase system for the composite materials may be inferred from a combination of XRD and density data. Repulsive force measurements showed that the diamagnetic properties were preserved in the composites and the samples exhibited appreciable magnetic levitation forces and this force increases with increasing volume fraction of the superconductor filler.

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Section: Introductionmentioning

confidence: 99%

“…Besides this, versatile polymer processing techniques, such as compression, extrusion and injection moulding, can be used to form superconducting composites into various useful shapes. 3 Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

High-T_csuperconductor/linear low density polyethylene (LLDPE) composite materials for diamagnetic applications

Bhadrakumari¹,

Predeep²

2006

Supercond. Sci. Technol.

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“…Such as the IBI methods have been employed to probe the phasesegregated characteristics exhibited in blends containing P3HT and fullerene derivatives. [52,[59][60][61][62][63][64][65] CGMD simulations based on the Martini force field were adopted to systematically investigate the large-scale morphological organization during solution processing for the P3HT:PCBM mixture. [66,67] In the field of OSCs, the focus of CG simulation research predominantly centers on polymers akin to P3HT.…”

Section: Introductionmentioning

confidence: 99%

Modulation of Phase Separation Morphology by Configuration Engineering in Bulk Heterojunction Organic Solar Cells

Zhou,

Liu,

Zhang

et al. 2024

Solar RRL

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For bulk‐heterojunction organic solar cells (OSCs), molecular structure design to control molecular stacking is crucial to obtain ideally phase‐separated morphology and high device performance. Herein, the investigation focuses on two polythiophene‐quinoxaline (PTQ) derivatives (PTQ8 and PTQ10) blended with Y6, utilizing coarse‐grained molecular dynamics simulations based on the Lennard–Jones static potential (LJSP) method. The study reveals that the diminished photovoltaic efficiencies of PTQ8:Y6 blends, compared to PTQ10:Y6 blends, are not solely attributed to reduced driving forces. The introduction of fluorine‐substituted sites in the thiophene group of PTQ polymer is identified as a significant factor. This alteration causes PTQ polymers in PTQ8:Y6 blends to coil, compromising the crystalline structure. PTQ8's bifluorine group induces a repulsive effect on the quinoxaline group, leading to a coiled‐chain structure that hinders chain stacking. Conversely, PTQ10 exhibits a straighter chain conformation. Additionally, PTQ8's high solubility in chloroform prevents effective aggregation, further impeding suitable morphology formation. Coarse‐grained simulations employing LJSP prove effective in precisely exploring the morphology of OSCs, offering crucial insights for materials in this field.

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“…Several solutions have already been proposed to produce materials having sufficient flexibility, mechanical strength and good superconducting behaviors. These are, for instance [1][2][3], thin superconductor films deposited on various substrates, superconductor/ metal tapes or high T c powders embedded in a polymer matrix. In this work, we deal with composite materials belonging to the last mentioned group.…”

Section: Introductionmentioning

confidence: 99%

A Raman Investigation of YBCO∕Linear Low Density Polyethylene (LLDPE) Composites

Bhadrakumaria¹,

Predeep²

2011

AIP Conference Proceedings

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A series of flexible composites are formed by mixing High Temperature Superconducting YBCO and Linear Low Density Polyethylene (LLDPE) and the behaviour of these composites are investigated using Raman Spectroscopy. This study indicated the presence of well defined Raman lines. Raman spectra of pure YBCO and composite samples showed sharp bands and the intensity of these bands is found to decrease with decreasing proportion of the polymer in the composite, indicating the presence of characteristic structural units.

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Preparation and characterization of some superconductor/polymer composites

Cited by 10 publications

References 2 publications

High-T_csuperconductor/linear low density polyethylene (LLDPE) composite materials for diamagnetic applications

High-T_csuperconductor/linear low density polyethylene (LLDPE) composite materials for diamagnetic applications

Modulation of Phase Separation Morphology by Configuration Engineering in Bulk Heterojunction Organic Solar Cells

A Raman Investigation of YBCO∕Linear Low Density Polyethylene (LLDPE) Composites

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Preparation and characterization of some superconductor/polymer composites

Cited by 10 publications

References 2 publications

High-Tcsuperconductor/linear low density polyethylene (LLDPE) composite materials for diamagnetic applications

High-Tcsuperconductor/linear low density polyethylene (LLDPE) composite materials for diamagnetic applications

Modulation of Phase Separation Morphology by Configuration Engineering in Bulk Heterojunction Organic Solar Cells

A Raman Investigation of YBCO∕Linear Low Density Polyethylene (LLDPE) Composites

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Product

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High-T_csuperconductor/linear low density polyethylene (LLDPE) composite materials for diamagnetic applications

High-T_csuperconductor/linear low density polyethylene (LLDPE) composite materials for diamagnetic applications