Microwave absorption and infrared performance of Sm0.5Sr0.5Co1−xNixO3 (0 ≤ x ≤ 1.0) with the K2NiF4 structure

Chen, Le; Lu, Chunhua; Lü, Yi; Fang, Zhenggang; Ni, Yaru; Xu, Zhongzi

doi:10.1039/c3ra21711f

Cited by 20 publications

(4 citation statements)

References 39 publications

(37 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Instead, current infrared camouage materials are required to be thin, lightweight and possess broad band characteristics. [10][11][12] Via a common melt-spinning method, Yu et al 10 prepared a bicomponent ber with a sheath-core structure using polypropylene (PP) chips and various llers (Ba/Mn-Zn ferrite and bronze particles). The bicomponent ber possessed an exceptional radar absorbing effect.…”

Section: Introductionmentioning

confidence: 99%

Hierarchical SiO₂@Bi₂O₃ core/shell electrospun fibers for infrared stealth camouflage

et al. 2015

View full text Add to dashboard Cite

Novel, freestanding membranes composed of SiO 2 @Bi 2 O 3 hierarchical core/shell fibers were prepared by a combination of two fabrication methods: electrospinning and hydrothermal reaction. The SiO 2 @Bi 2 O 3 composite membranes were primarily supported by flexible SiO 2 fibers after the calcination treatment of electrospun PVA/SiO 2 hybrid fibrous membranes. SiO 2 @Bi 2 O 3 composite fibers were fabricated via a process that entails hydrothermal growth of a bismuth precursor nanocoating (Bi-PN) on the surface of SiO 2 fibers followed by the thermal treatment of the harvested SiO 2 @Bi-PN fibers. It was observed that Bi 2 O 3 nanoparticles were well anchored on the surface of SiO 2 fibers and the phase transition of Bi 2 O 3 nanoparticles occurred during the thermal treatment of SiO 2 @Bi-PN composite fibers at different temperatures. The infrared emission rates of the resultant SiO 2 @Bi 2 O 3 composite membranes were evaluated in comparison with pure SiO 2 fibers in 2-22 mm wavebands. It is theorized that the coating of Bi 2 O 3 nanoparticles contributes to the decrease of infrared emissivity, and the infrared emission properties of SiO 2 @Bi 2 O 3 composite fibers are related to the a-Bi 2 O 3 phase. The results favourably indicated prospects of SiO 2 @Bi 2 O 3 composite fibrous membranes for applications in infrared stealth camouflage. † Electronic supplementary information (ESI) available: TEM images of SiO 2 @ Bi 2 O 3 composite bers. See

show abstract

Section: Introductionmentioning

confidence: 99%

Hierarchical SiO₂@Bi₂O₃ core/shell electrospun fibers for infrared stealth camouflage

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Thus, single‐spectral absorbing materials or coatings are not sufficient to meet the multispectral stealth requirements. Compatible multispectral absorbing materials in microwave, visible light, and infrared (IR) or even more bands have attracted more and more attention, and are intensely desired in modern electronic warfare . Traditional single‐spectral absorbing materials or coatings have been widely investigated .…”

Section: Introductionmentioning

confidence: 99%

“…These single‐layer coatings are complicated in the design and analysis. Usually, their absorption bandwidths in microwave band are narrow and difficult to extend . The realization of a compatible multispectral absorber with efficient absorption in each required frequency band, especially in broad microwave band, remains a problem.…”

Section: Introductionmentioning

confidence: 99%

A Broadband Compatible Multispectral Metamaterial Absorber for Visible, Near‐Infrared, and Microwave Bands

Muneer

et al. 2018

Advanced Optical Materials

View full text Add to dashboard Cite

A design of a compatible multispectral metamaterial absorber with broadband and strong absorption in the microwave, visible‐light, and near‐infrared bands is presented based on conductive carbon black (CCB)‐filled polyethylene (PE) composite films. The CCB‐filled PE composite films are employed to not only attenuate the light energy for realizing visible and near‐infrared absorbers, but also provide a conductive film to construct resistive metamaterial surfaces for realizing a microwave absorber. Considering the two natural properties of the composite films, light attenuation property and electric property, a multilayered structure based on resistive metamaterial surfaces is designed to realize a broadband compatible absorber. These resistive metamaterial surface layers are realized by the prepared composite films. The effect of different resistances of resistive metamaterial surfaces, polarization, and incident angles on the microwave absorbing performance is also analyzed in detail. Finally, a compatible multispectral absorber with a total thickness of 17 mm (0.133λmax) is fabricated and measured. Simulated and measured results both show that the presented absorber can achieve an absorption of 96.8% over a frequency range from 2.35 to 18 GHz. On the other hand, a high absorption of about 95% is obtained in visible‐light and near‐infrared bands as well.

show abstract

“…4,5 Aer 1993, LSMO gained renewed attention for the discovery of "colossal" magneto-resistance (CMR). 6,7 Recently, LSMO that exhibit double exchange, 8 electron-phonon coupling, 9 super-exchange function and high chemical stability have attracted considerable attention for their potential applications in magnetic electronics, microwave absorption, 10 catalytic materials 11 and so on. The microstructure and grain sizes usually play a signicant role in the electrical, magnetic, transport and CMR performances of LSMO systems, [12][13][14][15] and a number of investigations on the ion doping of LSMO have been carried out to explore the CMR phenomenon and thermal and electronic transport properties, 16,17 but there are only a few reports on the frequency dispersions of the permittivity and conductivity until now.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and dielectric properties of ion-doped La0.7Sr0.3MnO3 lossy ceramics at radio frequencies

et al. 2014

View full text Add to dashboard Cite

In this paper, the microstructure and dielectric properties of ion-doped La 0.7 Sr 0.3 MnO 3 are investigated in detail. The polycrystalline ceramics of La 0.7 Sr 0.3 Mn 1Ày M y O 3 (M ¼ Fe, Ni, Cu; y ¼ 0.3 or 0.5) are prepared by the sol-gel/sintering method. The symmetry of the crystal structure is improved and the dielectric properties obtained in the frequency range from 80 MHz to 1 GHz can be tuned by the doping of Fe, Ni, and Cu ions. With regard to the dielectric properties in lossy ceramics, the decrease of real permittivity 3 0 r for the doping of Fe and Ni will be effective for impedance-matching; the enhanced dielectric losses in the Ni and Cu doping samples will promote stronger absorption. Thus, the improved dielectric properties make ion-doped La 0.7 Sr 0.3 MnO 3 promising candidates for lossy ceramics in microwave electronics. In addition, the experimental results of permittivity were checked by K-K relations, and the frequency dispersion behaviors of the conductivity within a certain frequency range accord with the Jonscher's power law in the form of s 0 ac (f) f (2pf) n , demonstrating that the conductive mechanism is hopping conduction.

show abstract

Microwave absorption and infrared performance of Sm0.5Sr0.5Co1−xNixO3 (0 ≤ x ≤ 1.0) with the K2NiF4 structure

Abstract: Microwave absorption and infrared performance of Sm 0.5 Sr 0.5 Co 12x Ni x O 3 (0 ¡ x ¡ 1.0) with the K 2 NiF 4 structure

Cited by 20 publications

References 39 publications

Hierarchical SiO₂@Bi₂O₃ core/shell electrospun fibers for infrared stealth camouflage

Hierarchical SiO₂@Bi₂O₃ core/shell electrospun fibers for infrared stealth camouflage

A Broadband Compatible Multispectral Metamaterial Absorber for Visible, Near‐Infrared, and Microwave Bands

Microstructure and dielectric properties of ion-doped La0.7Sr0.3MnO3 lossy ceramics at radio frequencies

Contact Info

Product

Resources

About

Microwave absorption and infrared performance of Sm0.5Sr0.5Co1−xNixO3 (0 ≤ x ≤ 1.0) with the K2NiF4 structure

Abstract: Microwave absorption and infrared performance of Sm 0.5 Sr 0.5 Co 12x Ni x O 3 (0 ¡ x ¡ 1.0) with the K 2 NiF 4 structure

Cited by 20 publications

References 39 publications

Hierarchical SiO2@Bi2O3 core/shell electrospun fibers for infrared stealth camouflage

Hierarchical SiO2@Bi2O3 core/shell electrospun fibers for infrared stealth camouflage

A Broadband Compatible Multispectral Metamaterial Absorber for Visible, Near‐Infrared, and Microwave Bands

Microstructure and dielectric properties of ion-doped La0.7Sr0.3MnO3 lossy ceramics at radio frequencies

Contact Info

Product

Resources

About

Hierarchical SiO₂@Bi₂O₃ core/shell electrospun fibers for infrared stealth camouflage

Hierarchical SiO₂@Bi₂O₃ core/shell electrospun fibers for infrared stealth camouflage