Flake Cu-5Ag alloy powder with enhanced oxidation resistance via aging

Shang, Rongrong; Gong, Xiaochun; Li, Yunping; Teng, Jianwei

doi:10.1016/j.apt.2022.103921

Cited by 2 publications

(1 citation statement)

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“…Cu-Ag bimetallic nanoparticles can be synthesized via various physical and chemical methods [8,9]. Typically, chemical reduction is used to produce Ag-Cu bimetallic nanoparticles with a wide range of size and different shapes.…”

Section: Introductionmentioning

confidence: 99%

Mechanochemically Assisted Synthesis of Cu–Ag Microflakes

Vorobyev

Logutenko

Borisenko

et al. 2023

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In this work, a simple, inexpensive, and eco-friendly synthesis method of Cu−Ag microflakes has been developed. Firstly, Cu nanoparticles were synthesized by the reduction of copper nitrate in ethylene glycol at 180 °C in the presence of NaOH. The as-synthesized Cu powder was then dispersed in a mixture of ethyl alcohol and a dispersant followed by the mechanochemical treatment of the dispersion in a ball mill resulting in the formation of Cu flakes of approximately 0.2 μm thick and 2.7 μm lateral size. Next, by adding AgNO3 dissolved in H2O into the Cu particle dispersion, the bimetallic Cu−Ag microflakes were prepared. The particles so prepared were investigated by X-ray phase analysis and electron microscopy. It was shown that the Cu−Ag bimetallic particles were also flake-like in shape and similar in size to the original Cu microflakes. The effect of synthesis conditions, including parameters of mechanochemical processing, on thickness, size, and uniformity of the bimetallic microflakes was studied. The results obtained in this study were compared with those obtained by wet chemical synthesis alone. The flake-like Cu–Ag particles are supposed to be used in the manufacture of conductive pastes, adhesives, and composites for printed electronics.

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Section: Introductionmentioning

confidence: 99%