Fabrication and Optical Property of Cu7S4 Hollow Nanoparticles Formed Through Kirkendall Effect

Wang, Congjian; Xu, Zhilin; Liu, R

doi:10.1016/s1005-9040(08)60052-5

Cited by 3 publications

(1 citation statement)

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“…Figure 1 (a) shows that the sample surface appeared to have a lamellar distribution after arc spraying, as irregular distribution appeared when the atomized Al micro-droplet was effected by gas pressure at the moment of contact with the substrate (Zuo et al, 2013). Figure 1 (b) shows that the coating was tightened with the substrate, and that Kirkendall voids (Wang et al, 2008) existed on the coating. The bonding interface of arc-sprayed Al coating was composed of the substrate, specifically the Fe-Al diffused layer and the pure Al layer, in which the diffused layer presented an irregular shape and was embedded into the substrate.…”

Section: Surface-interface Morphologiesmentioning

confidence: 99%

Effects of laser remelting on surface-interface morphologies, bonding modes and corrosion performances of arc-sprayed Al coating

Liu

Tianyuan

Dejun

2017

ACMM

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Purpose The purpose of this paper is to provide an experimental basis for studying the effects of laser remelting on the surface modification of arc-sprayed Al coating. Design/methodology/approach A layer of arc-sprayed Al coating on S355 steel was remelted with a CO2 laser, and the surface-interface morphologies, compositions of chemical elements and phases of Al coating were analyzed with scanning electron microscopy, energy disperse spectroscopy and X-ray diffraction, respectively. The effects of laser remelting on compositions of chemical elements and bonding performance of Al coatings were discussed. Findings The result shows that there are some pores existing on the Al coating surface after arc spraying, and the combination mode of coating interface is primarily composed of mechanical bonding. The pores on the Al coating reduce after laser remelting, which improves the compact performance, and the mechanical binding mode by arc spraying is changed into metallurgical bonding. The Fe and Al atoms at the coating interface are distributed with gradient, and the stratified enrichment is evident, which improves binding performance of the Al coating. The Al coating exhibits general corrosion before laser remelting and local corrosion after laser remelting, which improves the corrosion resistance of Al coating. Originality/value The arc-sprayed Al coating is remelted by CO2 laser, improving its microstructures and bonding mode with the substrate.

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Section: Surface-interface Morphologiesmentioning

confidence: 99%

Effects of laser remelting on surface-interface morphologies, bonding modes and corrosion performances of arc-sprayed Al coating

Liu

Tianyuan

Dejun

2017

ACMM

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Hollow Multi-shelled Structure Photoelectric Materials: Multiple Shells Bring Novel Properties

Su,

Wan,

Wang

2024

Chem. Res. Chin. Univ.

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Fast Synthesis, Formation Mechanism, and Control of Shell Thickness of CuS Hollow Spheres

2009

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CuS hollow spheres were quickly synthesized under mild conditions with spherical aggregates of Cu(2)O nanoparticles as sacrificial templates. The mechanism involved in the synthesis process has been studied using transmission electron microscopy, high-resolution transmission electron microscopy, scanning electron microscopy, X-ray diffraction, thermal gravimetry, and Fourier transform infrared spectra. The results show that the formation of loose aggregates of Cu(2)O nanoparticles is the key to the fast synthesis of hollow spheres at low temperature. The thickness of the shell can be controlled easily by adjusting the aggregation degree of the Cu(2)O nanoparticles.

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Fabrication and Optical Property of Cu7S4 Hollow Nanoparticles Formed Through Kirkendall Effect

Cited by 3 publications

References 0 publications

Effects of laser remelting on surface-interface morphologies, bonding modes and corrosion performances of arc-sprayed Al coating

Effects of laser remelting on surface-interface morphologies, bonding modes and corrosion performances of arc-sprayed Al coating

Hollow Multi-shelled Structure Photoelectric Materials: Multiple Shells Bring Novel Properties

Fast Synthesis, Formation Mechanism, and Control of Shell Thickness of CuS Hollow Spheres

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