Tuneable Composites Containing Magnetic Microwires

Panina, L.V.; Ipatov, M.; González, J.; Zhukova, V.; Zhukov, A.

doi:10.5772/21423

Cited by 8 publications

(9 citation statements)

References 67 publications

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“…Two additional glass fibre prepregs of same size (500×500 mm 2 ) were therefore used to host the microwire-CFs prepreg layer (Figure 1). The whole metacomposite was then cured in autoclave for curing (details can be found in [13]). Microwave measurements were carried out by using a free-space technique in the 0.9-17 GHz with an external dc magnetic bias swept between 0 and 3000 A/m.…”

Section: Methodsmentioning

confidence: 99%

“…Many interesting features in the microwire metacomposite category have been obtained and understood, e.g. , DNG [6, 9], tunable negative permittivity [10, 11], and magnetic/stress tunable properties [12, 13]. These metacomposites are also relatively inexpensive to manufacture, because the embedded microwires can be fixed within the microstructure of the glass/epoxy composites with a classical curing process, as opposed to expensive nanotechnologies that are needed to fabricate conventional metamaterials [14].…”

Section: Introductionmentioning

confidence: 99%

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Microwave Properties of Metacomposites Containing Carbon Fibres and Ferromagnetic Microwires

et al. 2019

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The microwave properties of composites containing Fe-based ferromagnetic microwires and carbon fibres have been investigated as part of a campaign to bring added functionalities into structural composites. A transmission window observed in 1-6 GHz demonstrates double-negative (DNG), i.e., metamaterial characteristics in the composites containing short-cut carbon fibres and a parallel array of microwires; the metamaterial characteristic is due to the ferromagnetic resonance and a plasmonic behaviour, as short carbon fibres are proved to ameliorate DNG properties through enhancing the impedance of the composites. In parallel, magnetically tunable metamaterial features are realised in composites containing continuous carbon fibres and microwires, which can be switched on/off via rotating the electrical excitation direction. Such structural composites integrated with metamaterial features (termed as metacomposites) are potentially useful for active cloaking applications among others.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microwave Properties of Metacomposites Containing Carbon Fibres and Ferromagnetic Microwires

et al. 2019

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“…The possibility of non-contact detection of the signals from the composites at high frequency is of great interest for remote non-destructive testing and structural health monitoring. Such composites consist of arrays of continuous or short-cut pieces of conductive ferromagnetic wires embedded into a dielectric matrix [20,21,22]. On the other hand, magnetic domain wall propagation at low frequency has become an important research topic because the possibility of contactless stresses measuring inside a material.…”

Section: Introductionmentioning

confidence: 99%

Microwire-Based Sensor Array for Measuring Wheel Loads of Vehicles

Olivera

Aparicio

Hernández

et al. 2019

Sensors

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In this paper, a magnetic microwire-based sensor array embedded under the pavement is proposed as a weighing system at customs ports of entry. This sensor is made of a cementitious material suitable for embedding within the core of concrete structures prior to curing. The objective of this research is to verify the feasibility of stress monitoring for concrete materials using an array of cement-based stress/strain sensors that have been developed using the magnetic sensing property of an embedded microwire in a cement-based composite. Test results for microwire-based sensors and gauge sensors are compared. The strain sensitivity and their linearity are investigated through experimental testing under compressive loadings. Sensors made of these materials can be designed to satisfy specific needs and reduce costs in the production of sensor aggregates with improved coupling performance, thus avoiding any disturbance to the stress state.

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“…The short wire inclusions play a role of "the elementary scatterers," when the electromagnetic wave irradiates the composite and induces a longitudinal current distribution and electrical dipole moment in each inclusion. A number of applications have been proposed, including the stress-sensitive media for remote nondestructive health monitoring of different structures, temperature-dependent media, and selective microwave coatings with field-dependent reflection/transmission coefficients [123,124]. The important advantage of such applications is that the soldering problems are avoided because of the wireless detection of the signals.…”

Section: Giant Magnetoimpedance Stress Impedance and Torsion Impedamentioning

confidence: 99%

“…Among recent applications, new types of stress-tunable and temperature-tunable composite materials based on thin ferromagnetic wires with the effective microwave permittivity depending on an external DC magnetic field, applied stress, or temperature recently have been introduced [123,124]. Such composites consist of short pieces of conductive ferromagnetic wires embedded into a dielectric matrix.…”

Section: Giant Magnetoimpedance Stress Impedance and Torsion Impedamentioning

confidence: 99%

Soft Magnetic Wires for Sensor Applications

Zhukova

2016

Springer Series in Materials Science

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First amorphous materials using rapid quenching from the liquid state were prepared nearly 50 years ago [1][2][3][4]. Development of the rapid-quenching technique allowed obtaining of new materials with metastable crystalline, amorphous, nanocrystalline, granular structures with a new combination of physical properties (mechanical, magnetic, electrochemical, etc.) and opening of new fields of research in material science, magnetism, and technology. During the next years, few rapidquenching technologies allowing preparation of different types of rapidly quenched materials have been developed. At the beginning most attention has been paid to studies of planar rapidly quenched materials: rapidly quenched ribbons produced by quenching on the drum [4][5][6].Excellent magnetic softness of amorphous materials obtained by the meltspinning technique has attracted considerable attention, making them very attractive in potential applications in recording head and microtransformer industries. Such magnetic softness originates from the absence of magnetocrystalline anisotropy in these alloys [6].Further development of the rapidly quenching fabrication techniques allowed preparation of rapidly materials with cylindrical symmetry: rapidly quenched wires [7][8][9][10]. Amorphous wires, typically around 125 μm in diameter, obtained by the so-called in-rotating-water quenching technique, have been firstly introduced in 1980.The magnetostrictive compositions exhibit rectangular hysteresis loop, while the best magnetic softness is observed for the nearly zero magnetostriction composition.

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Tuneable Composites Containing Magnetic Microwires

Cited by 8 publications

References 67 publications

Microwave Properties of Metacomposites Containing Carbon Fibres and Ferromagnetic Microwires

Microwave Properties of Metacomposites Containing Carbon Fibres and Ferromagnetic Microwires

Microwire-Based Sensor Array for Measuring Wheel Loads of Vehicles

Soft Magnetic Wires for Sensor Applications

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