Preparation and electromagnetic wave absorption properties of novel dendrite-like NiCu alloy composite

Zhao, Biao; Shao, Gang; Fan, Bingbing; Zhao, Wanyu; Zhang, Rui

doi:10.1039/c5ra05323d

Cited by 28 publications

(12 citation statements)

References 25 publications

(58 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure A shows the X-ray diffraction (XRD) spectra of the printed Cu/Ni alloy with different compositions. Overall, the XRD analysis shows that the printed alloy is a single phase solid solution bimetallic alloy with a fcc structure . The peak for each alloy is between the fcc (111) peak of 2θ = 43.3 for pure Cu and 2θ = 44.5 for pure Ni.…”

Section: Resultsmentioning

confidence: 92%

“…Overall, the XRD analysis shows that the printed alloy is a single phase solid solution bimetallic alloy with a fcc structure. 62 The peak for each alloy is between the fcc (111) peak of 2θ = 43.3 for pure Cu and 2θ = 44.5 for pure Ni. A shift is observed in the diffraction angle toward higher angles as the nickel content of the alloy film is increased.…”

Section: Nicitmentioning

confidence: 99%

See 1 more Smart Citation

Direct-Write Printing Copper–Nickel (Cu/Ni) Alloy with Controlled Composition from a Single Electrolyte Using Co-Electrodeposition

Wang

Bhuiyan

Moreno

et al. 2020

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Although various processes for metal printing at the micro- and mesoscale have been demonstrated, printing functional devices such as thermocouples, thermopiles, and heat flux sensors that function based on interfaces between an alloy and another alloy/metal demands processes for printing alloys. Furthermore, a high-quality and crystalline alloy is required for acceptable function of these devices. This article reports for the first time co-electrodeposition-based printing of single-phase solid solution nanocrystalline copper/nickel (Cu/Ni) alloy with various controllable compositions (Cu100Ni0 to Cu19Ni81) from a single electrolyte. The printed alloy is nanocrystalline (<35 nm), continuous, and dense with no apparent porosity, with remarkable mechanical and magnetic properties, without any postprocessing annealing such as heat treatment. In addition, a functional thermocouple fabricated using this process is demonstrated. Such a process can not only be used for fabrication of functional devices, it may also facilitate fundamental studies on alloys by printing a continuous library of alloy composition for material characterization.

show abstract

Section: Resultsmentioning

confidence: 92%

Section: Nicitmentioning

confidence: 99%

Direct-Write Printing Copper–Nickel (Cu/Ni) Alloy with Controlled Composition from a Single Electrolyte Using Co-Electrodeposition

Wang

Bhuiyan

Moreno

et al. 2020

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

“…The similar crystalline structures and atomic radii of Ni and Cu make their alloying process relatively easy. Zhao et al even fabricated a dendrite-like NiCu alloy by a simple hydrothermal reaction, whose minimal RL reached −31.1 dB at 14.3 GHz and whose EAB covered the frequency range of 12.7-16.1 GHz with an absorber thickness of 1.50 mm [67,68]. It should be noted that the introduction of Cu atoms to improve microwave absorption performance mainly benefits from the optimization of the dielectric properties, rather than the magnetic properties, because the magnetic moment of the Cu atom is almost negligible as compared with that of the Ni atom.…”

Section: Ni and Ni-containing Alloysmentioning

confidence: 99%

A review of recent advancements in Ni-related materials used for microwave absorption

Wang¹,

Liu²,

Cui³

et al. 2021

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

Microwave absorption is emerging as a sustainable pathway through which to alleviate various problems induced by increasingly serious electromagnetic (EM) pollution and interference. As a platform for the conversion of EM energy, microwave-absorbing materials (MAMs) have received widespread attention and have been intensively studied in the past two decades. Among all kinds of materials with characteristic EM functions, the metal Ni has always been regarded as one of the most promising candidates, due to its good magnetic loss, compatible dielectric loss, and high Snoek's limit, as well as its easy production and abundant global reserves. However, it is still difficult for raw Ni particles to realize desirable absorption efficiency, and thus a lot of research has been carried out in the areas of microstructure optimization, alloying, and the composite design of Ni particles to significantly upgrade their microwave absorption performance. This review provides a comprehensive introduction to recent advancements in various high-performance Ni-related MAMs, including hierarchical Ni particles, Ni-based alloy particles, Ni-related composites with metal oxides/sulfides/conductive polymers/various carbon materials, and multicomponent Ni-related composites. Thanks to the synergistic effects between different components and elaborate microstructure designs, these Ni-related MAMs can produce a remarkable improvement in microwave absorption performance. Moreover, the challenges and prospects are also discussed in order to provide some new insights into further research in the field of Ni-related MAMs.

show abstract

“…The carbon-coated copper nanocapsule has excellent absorbing performance. Zhao et al [24], through a simple solution reduction method, made a new leaf-like NiCu alloy composite. The experiment discovered that 40 wt.% of NiCu has good microwave absorbing performance, since reflection loss reached −21.1 dB, and the microwave absorption bandwidth was 3.4 GHz.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature on the Microwave-Absorbing Properties of an Al2O3–MoSi2 Coating Mixed with Copper

et al. 2021

View full text Add to dashboard Cite

To obtain a high temperature-resistant microwave absorbing coating, an Al2O3–MoSi2/Cu composite coating was prepared by atmospheric plasma spraying. Compared with a normal temperature environment, there are a few reports on Cu as an absorbent for high temperature microwave absorbing coatings. Therefore, in this regard, wave absorbing property can be improved by using a Cu absorbent. The microstructure of a Al2O3–MoSi2/Cu coating was observed, and the dielectric properties of the composite coating in the high-temperature environment of the X-band were tested. The experimental results show that with the increase in temperature, Cu transforms Cu2O in the high-temperature environment and improves the coating’s wave absorption performance with MoSi2. In addition, a 1.4 mm-thick coating showed best microwave absorbing performance at 700 °C. The reflection loss was −19.09 dB, and the effective microwave absorbing bandwidth was 2.83 GHz (Reflection Loss < −10 dB). It was found that the Al2O3–MoSi2/Cu composite coating has good wave-absorbing performance in a 700 °C high-temperature environment.

show abstract

Preparation and electromagnetic wave absorption properties of novel dendrite-like NiCu alloy composite

Cited by 28 publications

References 25 publications

Direct-Write Printing Copper–Nickel (Cu/Ni) Alloy with Controlled Composition from a Single Electrolyte Using Co-Electrodeposition

Direct-Write Printing Copper–Nickel (Cu/Ni) Alloy with Controlled Composition from a Single Electrolyte Using Co-Electrodeposition

A review of recent advancements in Ni-related materials used for microwave absorption

Effect of Temperature on the Microwave-Absorbing Properties of an Al2O3–MoSi2 Coating Mixed with Copper

Contact Info

Product

Resources

About