Structure, Magnetic Properties and Electromagnetic Response of Y-Type Hexaferrites and Hexaferrite-Based Composite Materials

Wagner, Dmitry V.; Dotsenko, O. A.; Журавлев, В. А.

doi:10.1007/s11182-019-01750-8

Cited by 7 publications

(4 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The spectra were measured using two sets of composite samples. One of them were isotropic samples produced without any external influences [27]. The samples of the second set were obtained by texturing the particles of composite during polymerization in a rotating magnetic field of 4 kOe applied in the plane of a toroidal sample [30].…”

Section: Preparation Of Samplesmentioning

confidence: 99%

“…On the one hand, researchers focus on these materials as carriers of the magnetoelectric effect [4,[12][13][14][15]20] and consider the possibility of their use as materials for magnetic memory and spintronic. On the other hand, due to their structural, dielectric, and magnetic properties, these materials are candidates for use as absorbers of EM energy in the microwave range [8,11,16,17,[25][26][27] and as substrates for the manufacture of miniature antennas [8,17,23] and attenuators [19,22].…”

Section: Introductionmentioning

confidence: 99%

“…In the epoch of miniaturization and weight reduction of electronic devices, composite materials in which ferrite powders are used as fillers come out on top. The properties of both the filler and the binder combination, as well as the additional treatments, make it possible to vary the properties of such composites [16,27].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Static and Dynamic Magnetic Properties of Polycrystalline Hexaferrites of the Ba2Ni2-xCuxFe12O22 System

et al. 2022

View full text Add to dashboard Cite

The paper presents the results of a study of the phase composition and the main static magnetic characteristics: saturation magnetization, residual magnetization and coercive force of polycrystalline ferroxplana type hexaferrites of the Ba2Ni2-xCuxFe12O22 (0 ≤ x ≤ 2.0) system. These materials have high magnetic permeability and are promising for use as substrates for magnetic antennas and radar absorbing materials. It is shown that thermograms of the initial permeability can be used to quickly assess the presence of impurity magnetic phases in complex oxide ferrimagnets. The permeability and permittivity spectra of textured and non-textured composite samples with the powder of the Ba2NiCuFe12O22 hexaferrite are measured in the microwave frequency range. The radar absorbing properties of the obtained composites are analyzed. It is shown that magnetic texturing leads to an increase in the operating frequency band of an absorber with RL < −10 dB from 6.1 GHz to 8.2 GHz and a deepening of the loss minimum from −21 dB to −27 dB.

show abstract

Section: Preparation Of Samplesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Static and Dynamic Magnetic Properties of Polycrystalline Hexaferrites of the Ba2Ni2-xCuxFe12O22 System

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Nowadays, studies on dielectric wave-absorbing materials focus on barium titanate perovskites, barium ferric acid, and ferroelectric ceramics [ 11 , 12 , 13 , 14 ]. Magnetic radar-absorbing materials rely on magnetic loss to absorb and dissipate radar electromagnetic waves, which is competent of matching impedance as implemented in composite materials mainly composed of dielectric rubber matrix and functional fillers such as ferrite, carbonyl iron, ultrafine metal powder [ 15 , 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Electrical Insulation and Radar-Wave Absorption Performances of Nanoferrite/Liquid-Silicone-Rubber Composites

Sun

2022

IJMS

View full text Add to dashboard Cite

Novel radar-wave absorption nanocomposites are developed by filling the nanoscaled ferrites of strontium ferroxide (SrFe12O19) and carbonyl iron (CIP) individually into the highly flexible liquid silicone rubber (LSR) considered as dielectric matrix. Nanofiller dispersivities in SrFe12O19/LSR and CIP/LSR nanocomposites are characterized by scanning electronic microscopy, and the mechanical properties, electric conductivity, and DC dielectric-breakdown strength are tested to evaluate electrical insulation performances. Radar-wave absorption performances of SrFe12O19/LSR and CIP/LSR nanocomposites are investigated by measuring electromagnetic response characteristics and radar-wave reflectivity, indicating the high radar-wave absorption is dominantly derived from magnetic losses. Compared with pure LSR, the SrFe12O19/LSR and CIP/LSR nanocomposites represent acceptable reductions in mechanical tensile and dielectric-breakdown strengths, while rendering a substantial nonlinearity of electric conductivity under high electric fields. SrFe12O19/LSR nanocomposites provide high radar-wave absorption in the frequency band of 11~18 GHz, achieving a minimum reflection loss of −33 dB at 11 GHz with an effective absorption bandwidth of 10 GHz. In comparison, CIP/LSR nanocomposites realize a minimum reflection loss of −22 dB at 7 GHz and a remarkably larger effective absorption bandwidth of 3.9 GHz in the lower frequency range of 2~8 GHz. Radar-wave transmissions through SrFe12O19/LSR and CIP/LSR nanocomposites in single- and double-layered structures are analyzed with CST electromagnetic-field simulation software to calculate radar reflectivity for various absorbing-layer thicknesses. Dual-layer absorbing structures are modeled by specifying SrFe12O19/LSR and CIP/LSR nanocomposites, respectively, as match and loss layers, which are predicted to acquire a significant improvement in radar-wave absorption when the thicknesses of match and loss layers approach 1.75 mm and 0.25 mm, respectively.

show abstract

Magnetization and Curie Point of LiZn Ferrite Synthesized by Electron Beam Heating of Mechanically Activated Reagents

et al. 2023

View full text Add to dashboard Cite

Structure, Magnetic Properties and Electromagnetic Response of Y-Type Hexaferrites and Hexaferrite-Based Composite Materials

Cited by 7 publications

References 14 publications

Static and Dynamic Magnetic Properties of Polycrystalline Hexaferrites of the Ba2Ni2-xCuxFe12O22 System

Static and Dynamic Magnetic Properties of Polycrystalline Hexaferrites of the Ba2Ni2-xCuxFe12O22 System

Electrical Insulation and Radar-Wave Absorption Performances of Nanoferrite/Liquid-Silicone-Rubber Composites

Magnetization and Curie Point of LiZn Ferrite Synthesized by Electron Beam Heating of Mechanically Activated Reagents

Contact Info

Product

Resources

About