Stress tunable microwave absorption of ferromagnetic microwires for sensing applications

Qin, Faxiang; Попов, В. В.; Peng, Hua-Xin

doi:10.1016/j.jallcom.2011.07.051

Cited by 32 publications

(9 citation statements)

References 24 publications

(29 reference statements)

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“…1−4 Microwave coating materials with μeV absorption properties have been applied on electronics and devices to prevent signal leakage during communication and on aircraft to reduce radar detection in battlefields. Traditional coating materials include ferromagnetic nanoparticles 1,2 or conductive fillers in polymers. 3 Typical mechanisms for absorbing microwaves are electronic diffusive transport, 4 dipole rotations, 3,5 or ferromagnetic resonances.…”

Section: ■ Introductionmentioning

confidence: 99%

Strong Microwave Absorption of Hydrogenated Wide Bandgap Semiconductor Nanoparticles

Xia

Cao

Oyler

et al. 2015

ACS Appl. Mater. Interfaces

108

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Electromagnetic interactions in the microelectronvolt (μeV) or microwave region have numerous important applications in both civil and military fields, such as electronic communications, signal protection, and antireflective coatings on airplanes against microwave detection. Traditionally, nonmagnetic wide-bandgap metal oxide semiconductors lack these μeV electronic transitions and applications. Here, we demonstrate that these metal oxides can be fabricated as good microwave absorbers using a 2D electron gas plasma resonance at the disorder/order interface generated by a hydrogenation process. Using ZnO and TiO2 nanoparticles as examples, we show that large absorption with reflection loss values as large as -49.0 dB (99.99999%) is obtained in the microwave region. The frequency of absorption can be tuned with the particle size and hydrogenation condition. These results may pave the way for new applications for wide bandgap semiconductors, especially in the μeV regime.

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Section: ■ Introductionmentioning

confidence: 99%

Strong Microwave Absorption of Hydrogenated Wide Bandgap Semiconductor Nanoparticles

Xia

Cao

Oyler

et al. 2015

ACS Appl. Mater. Interfaces

108

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“…If the sample is subsequently magnetized by a field applied along the easy axis, 180 wall motion will take place in this direction, and there is little contribution to magnetostriction for such motion. Furthermore, the tensile stress r has an effect on k s according to the previous report 16,17 k s ¼ k s;0 À Ar;…”

mentioning

confidence: 78%

Effect of magnetic field annealing on magnetic properties for nanocrystalline (Fe1−xCox)78.4Si9B9Nb2.6Cu1 alloys

Wen

Wang

Shi

et al. 2013

Journal of Applied Physics

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Articles you may be interested inMagnetic permeability of Si-rich (FeCoNi)-based nanocrystalline alloy: Thermal stability in a wide temperature range J. Appl. Phys. 113, 17A310 (2013); 10.1063/1.4794718 Superior magnetic softness at elevated temperature of Si-rich Fe-based nanocrystalline alloy J. Appl. Phys. 112, 083922 (2012); 10.1063/1.4759243 Influence of magnetic field annealing on saturation magnetostriction and μi-T curves for FeCo-based nanocrystalline alloy Valve behavior of giant magnetoimpedance in field-annealed Co 70 Fe 5 Si 15 Nb 2.2 Cu 0.8 B 7 amorphous ribbon J. Appl. Phys. 97, 10M108 (2005); 10.1063/1.1854891Effect of stress and/or field annealing on the magnetic behavior of the ( Co 77 Si 13.5 B 9.5 ) 90 Fe 7 Nb 3 amorphous alloy

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“…In recent years, much research effort has been dedicated to the investigation of engineered composites containing ferromagnetic glass-coated microwires in terms of their tailorable size (2 m ~100 m), sensitivity to external stimuli such as, magnetic field, stress or temperature and microwave tunability [9][10][11]. The magnetic field and stress-dependent high frequency impedance properties of such wires make them promising candidates for SHM applications [12][13][14]. Two monitoring methods have been developed based on such effects, "wired" and "wireless", in which the impedance of the microwire is measured through electrical contacts and through the microwire scattering properties in free space, respectively [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

A self-sensing microwire/epoxy composite optimized by dual interfaces and periodical structural integrity

Zhao

Zheng

Qin

et al. 2020

Composites Part B: Engineering

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Self-sensing composites' performance largely relies on the sensing fillers' property and interface. Our previous work demonstrates that the microwires can enable self-sensing composites but with limited damage detection capabilities. Here, we propose an optimization strategy capitalizing on dual interfaces formed between glass-coat and metallic core (inner interface) and epoxy matrix (outer interface), which can be decoupled to serve different purposes when experiencing stress; outer interfacial modification is successfully applied with inner interface condition preserved to maintain the crucial circular domain structure for better sensitivity. We found out that the damage detection capability is prescribed by periodical structural integrity parameterized by cracks number and location in the case of damaged wires; it can also be optimized by stress transfer efficiency with silane treated interface in the case of damaged matrix. The proposed self-sensing composites enabled by a properly conditioned dual-interfaces are promising for real-time monitoring in restricted and safetycritical environments.

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Stress tunable microwave absorption of ferromagnetic microwires for sensing applications

Cited by 32 publications

References 24 publications

Strong Microwave Absorption of Hydrogenated Wide Bandgap Semiconductor Nanoparticles

Strong Microwave Absorption of Hydrogenated Wide Bandgap Semiconductor Nanoparticles

Effect of magnetic field annealing on magnetic properties for nanocrystalline (Fe1−xCox)78.4Si9B9Nb2.6Cu1 alloys

A self-sensing microwire/epoxy composite optimized by dual interfaces and periodical structural integrity

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