Glass-ceramic ferroelectric composite material BaTiO3/KFeSi for microwave applications

Tumarkin, A. V.; Tyurnina, N. G.; Mukhin, Nikolay; Tyurnina, Z. G.; Sinel’shchikova, O. Yu.; Gagarin, A. G.; Sapego, E. N.; Kretser, Yriy

doi:10.1016/j.compstruct.2021.114992

Cited by 6 publications

(3 citation statements)

References 40 publications

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“…Furthermore, the grain size and porosity may have affected the hysteresis loop behaviour. According to [77][78][79], large grains exhibit larger remnant polarizations because domain switching occurs more readily in larger grains under external electric fields [79][80][81]. Figure 7c shows the Bi:BT ceramic's pre-and post-gamma irradiation ferroelectric P-E hysteresis loops.…”

Section: Resultsmentioning

confidence: 99%

Effect of Gamma Irradiation on the Structural, Optical, Electrical, and Ferroelectric Characterizations of Bismuth-Modified Barium Titanate Ceramics

2022

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Materials with ferroelectric properties, low bandgap energies, high polarization, low loss, and thermal stability are essential for future solar-cell applications. Researchers have attempted to obtain such materials by using several approaches. In this vein, a novel approach is reported in this work using gamma ray irradiation. The effect of gamma radiation on the structural, optical, and ferroelectric characterizations of bismuth (Bi)-doped barium titanate (BaTiO3 (BT)), namely Ba0.95Bi0.05TiO3 ceramics (abbreviated as (Bi:BT)), was investigated. X-ray diffraction, structure refinement, and Raman study revealed the presence of a perovskite structure with a tetragonal phase in all investigated samples. Morphological study revealed a nonuniform grain size and some porosity. Gamma irradiation-induced combined effects were proved by a detailed analysis of bond lengths, bond angles, octahedral distortions, oxygen vacancies, and charge compensations. Electron paramagnetic resonance (EPR) study gave direct evidence of oxygen vacancies in the irradiated samples. After gamma irradiation, UV–vis study indicated a decrease in the bandgap from 3.14 to 2.80 eV and a significant increase in visible light absorption. Cole–Cole plots confirm as an increase in gamma-ray dose results in higher levels of electron hopping. Study of the P–E hysteresis loop demonstrated that ferroelectric properties could be maintained after gamma irradiation, with a slight decrease in remnant polarization. The behaviour of the P–E was correlated with increasing gamma dose in the investigated ceramics, demonstrating a strong gamma dependence in the loops’ profile. We guess that the present approach may be a promising technique for enhancing the multifunctionality of electronic devices.

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Section: Resultsmentioning

confidence: 99%

Effect of Gamma Irradiation on the Structural, Optical, Electrical, and Ferroelectric Characterizations of Bismuth-Modified Barium Titanate Ceramics

2022

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“…The failure behaviours of CARALL make it challenging to capture the hidden failure modes through the experimental method before the visible failure of CARALL. Therefore, it is essential to develop both theoretical and numerical methods to predict the mechanical response of CARALL [ 26 , 27 , 29 , 30 , 31 , 32 , 33 , 34 ]. Recently, many researchers have developed the progressive damage analysis method, which can effectively analyse composite damage [ 35 , 36 , 37 ].…”

Section: Introductionmentioning

confidence: 99%

Progressive Damage Behaviour Analysis and Comparison with 2D/3D Hashin Failure Models on Carbon Fibre–Reinforced Aluminium Laminates

Wei

Liu

et al. 2022

Polymers

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It is known that carbon fibre–reinforced aluminium laminate is the third generation of fibre metal materials. This study investigates the response of carbon fibre–reinforced aluminium laminates (CARALL) under tensile loading and three-point bending tests, which evaluate the damage initiation and propagation mechanism. The 2D Hashin and 3D Hashin VUMAT models are used to analyse and compare each composite layer for finite element modelling. A bilinear cohesive contact model is modelled for the interface failure, and the Johnson cook model describes the aluminium layer. The mechanical response and failure analysis of CARALL were evaluated using load versus deflection curves, and the scanning electron microscope was adopted. The results revealed that the failure modes of CARALL were mainly observed in the aluminium layer fracture, fibre pull-out, fracture, and matrix tensile fracture under tensile and flexural loading conditions. The 2D Hashin and 3D Hashin models were similar in predicting tensile properties, flexural properties, mechanical response before peak load points, and final failure modes. It is highlighted that the 3D Hashin model can accurately reveal the failure mechanism and failure propagation mechanism of CARALL.

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“…BaTiO 3 (BTO), with good ferroelectric properties, has been widely applied in many electronic components and devices, including multilayer capacitors, current control devices, self-controlled heaters, thermistors, temperature sensors, and overcurrent protection devices [7][8][9]. BTO may be used as an EM wave absorber due to its relatively high dielectric constant [10,11]. However, its low value of permeability prevents BTO becoming an excellent EM wave absorber [12].…”

Section: Introductionmentioning

confidence: 99%

Multiferroic characteristics and microwave absorption properties of La_1.5Sr_0.5NiO₄/BaTiO₃ nanocomposites

Thành¹,

Lam²,

Linh³

et al. 2022

Adv. Nat. Sci: Nanosci. Nanotechnol.

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As-prepared samples of La1.5Sr0.5NiO4 (LSNO) and BaTiO3 (BTO) were prepared by ball milling method combined with heat treatment. X-ray diffraction analysis showed the pure phases of LSNO with a tetragonal structure and BTO with a cubic structure. Average crystalline sizes were 15 and 35 nm for the LSNO and BTO samples, respectively. Lattice parameters of LSNO and BTO were almost unchanged after compositing, indicating no diffusion or chemical reaction between them during the compositing process. Adding LSNO to the BTO-based material significantly improved the ferroelectric and ferromagnetic properties, contributing to the enhancement of the electrical polarisation of the composites. These enhancements also boosted the microwave absorption performance of the composites. In detail, 20LSNO/80BTO nanocomposite embedded in acrylic paint could achieve the reflection loss up to −27 dB, meaning 99.8% of the incident microwave being absorbed. This absorber could also reach absorptivity over 60% for almost the whole range of the K u band frequency, which proved that 20LSNO/80BTO nanocomposite could be used as a good microwave absorber for practical applications.

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Glass-ceramic ferroelectric composite material BaTiO3/KFeSi for microwave applications

Cited by 6 publications

References 40 publications

Effect of Gamma Irradiation on the Structural, Optical, Electrical, and Ferroelectric Characterizations of Bismuth-Modified Barium Titanate Ceramics

Effect of Gamma Irradiation on the Structural, Optical, Electrical, and Ferroelectric Characterizations of Bismuth-Modified Barium Titanate Ceramics

Progressive Damage Behaviour Analysis and Comparison with 2D/3D Hashin Failure Models on Carbon Fibre–Reinforced Aluminium Laminates

Multiferroic characteristics and microwave absorption properties of La_1.5Sr_0.5NiO₄/BaTiO₃ nanocomposites

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Glass-ceramic ferroelectric composite material BaTiO3/KFeSi for microwave applications

Cited by 6 publications

References 40 publications

Effect of Gamma Irradiation on the Structural, Optical, Electrical, and Ferroelectric Characterizations of Bismuth-Modified Barium Titanate Ceramics

Effect of Gamma Irradiation on the Structural, Optical, Electrical, and Ferroelectric Characterizations of Bismuth-Modified Barium Titanate Ceramics

Progressive Damage Behaviour Analysis and Comparison with 2D/3D Hashin Failure Models on Carbon Fibre–Reinforced Aluminium Laminates

Multiferroic characteristics and microwave absorption properties of La1.5Sr0.5NiO4/BaTiO3 nanocomposites

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Product

Resources

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Multiferroic characteristics and microwave absorption properties of La_1.5Sr_0.5NiO₄/BaTiO₃ nanocomposites