X-ray photoelectron spectroscopy of ceramic composites Bi,Pb-2223/Ag annealed in an atmosphere with a reduced content of oxygen (7.5% O2 + 92.5% N2)

Кузнецова, Е. И.; Кузнецов, М. В.; Blinova, Yu. V.; Криницина, Т. П.; Сударева, С. В.; Романов, Е. П.; Раков, Д. Н.; Belotelova, Yu. N.

doi:10.1134/s0031918x12040072

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…[ 32 ] Two new peaks at 368.1 and 374.1 eV appear in the AgNPs‐MOGs xerogel, which can be attributed to Ag 3d 5/2 and Ag 3d 3/2 , respectively, consistent with references. [ 33 ] The peaks at 368.1 and 367.6 eV correspond to Ag 0 , while the peaks at 374.1 and 373.4 eV correspond to Ag 2 O (Figure 2e). The area of Ag 0 was significantly higher than that of Ag + , indicating that only a small amount of Ag 2 O was generated owing to the encapsulation of the sheath TPE to isolate the core AgNPs‐MOGs from the air (Figure 2f and Figure S7, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

Fibrous Conductive Metallogels with Hybrid Electron/Ion Networks for Boosted Extreme Sensitivity and High Linearity Strain Sensor

Li,

Wan,

Zhu

et al. 2023

Macromol. Rapid Commun.

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Fibrous strain sensing materials with both high sensitivity and high linearity is of significant importance for wearable sensors, yet still faces great challenges. Herein, a photo‐spun reaction encapsulation strategy is proposed for continuous fabrication of fibrous strain sensor materials (AMGF) with a core‐sheath structure. Metallogels (MOGs) formed by bacterial cellulose (BC) nanofibers and Ag nanoparticles (AgNPs), and thermoplastic elastomers (TPE) are employed as the core and sheath, respectively. The in‐suit ultraviolet light reduction of Ag+ ensured AgNPs to maintain the interconnections between the BC nanofibers and form an electron conductive networks (0.31 S m−1). Under applied strain, the BC nanofibers experienced separation, bringing AMGF a high sensitivity (gauge factor 4.36). The concentration of free ions in the MOGs uniformly varied with applied deformation, endowing AMGF with high linearity and a goodness‐of‐fit of 0.98. The sheath TPE provided AMGF sensor with stable working life (>10 000 seconds). Furthermore, the AMGF sensors were demonstrated to monitor complex deformations of the dummy joints in real‐time as a wearable sensor. Therefore, the fibrous hybrid conductive networks fibers fabricated via the photo‐spun reaction encapsulation strategy provide a new route for addressing the challenge of achieving both high sensitivity and high linearity.This article is protected by copyright. All rights reserved

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Section: Resultsmentioning

confidence: 99%

Fibrous Conductive Metallogels with Hybrid Electron/Ion Networks for Boosted Extreme Sensitivity and High Linearity Strain Sensor

Li,

Wan,

Zhu

et al. 2023

Macromol. Rapid Commun.

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Excess conductivity and magnetoresistance analysis for (BSF)x/(Bi, Pb)-2223 composite

Matar,

Mohamed,

Abou-Aly

et al. 2024

Appl. Phys. A

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This study examined the impact of adding hard ferrite Ba0.5Sr0.5Fe12O19 (BSF) nanoparticles to the Bi1.8Pb0.4Sr2Ca2Cu3.2O10+δ (Bi, Pb)-2223) superconductor phase. The investigation specifically focused on evaluating the critical current density, fluctuation-induced conductivity, and magnetoresistance of nano-(BSF)x/(Bi, Pb)-2223 composite, where 0.00 ≤ x ≤ 0.20 wt.%. The results revealed that the critical current density, Jc, increased with the addition of nano-(BSF) up to x = 0.04 wt.%, reaching a value of 441.20 A/cm2. The Aslamazov and Larkin (A–L) approach has been evaluated the fluctuation-induced conductivity. Several superconducting parameters, including coherence length ζc(0), effective layer thickness d, penetration depth λpd(0), and Fermi energy $${E}_{F}$$ E F showed improvement as the concentration of nano-(BSF) increased up to x = 0.04 wt.%. In addition to Ginzburg–Landau critical parameters, such as the thermodynamic critical field Bc(0), lower critical magnetic field Bc1(0), upper critical magnetic field Bc2(0), and critical current density Jc(0) demonstrated an increase up to x = 0.04 wt.%, followed by a decrease for higher concentrations. The magnetoresistance measurements were performed at various applied DC magnetic fields, with values ranging from 0.29 to 4.44 kG, and were analyzed using the thermally activated flux creep (TAFC) and Ambegaokar–Halperin (AH) models. The calculated flux pinning energy (U) increased with the addition of nano-(BSF) up to x = 0.04 wt.% and then decreased for x > 0.04 wt.%. Furthermore, the transition width (ΔT), was observed to increase as the applied magnetic field values increased. Moreover, the addition of nano-(BSF) increased the field-independent critical current density, Jc,0(0), up to x = 0.04 wt.%, after which it decreased for higher concentrations.

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Effect of partial substitution of calcium for yttrium on the structure and properties of the Y0.9Ca0.1Ba2Cu3O6.8 superconductor

Blinova

Cherepanova

Криницина

et al. 2016

Phys. Metals Metallogr.

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X-ray photoelectron spectroscopy of ceramic composites Bi,Pb-2223/Ag annealed in an atmosphere with a reduced content of oxygen (7.5% O2 + 92.5% N2)

Cited by 3 publications

References 18 publications

Fibrous Conductive Metallogels with Hybrid Electron/Ion Networks for Boosted Extreme Sensitivity and High Linearity Strain Sensor

Fibrous Conductive Metallogels with Hybrid Electron/Ion Networks for Boosted Extreme Sensitivity and High Linearity Strain Sensor

Excess conductivity and magnetoresistance analysis for (BSF)x/(Bi, Pb)-2223 composite

Effect of partial substitution of calcium for yttrium on the structure and properties of the Y0.9Ca0.1Ba2Cu3O6.8 superconductor

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