Title: Investigations on Embedding Nanoparticles by Electroplating
Abstract:To create a surface suitable for tribological applications, a layer of nanoparticles was deposited on a metal coated substrate, followed by embedding the nanoparticles in a metal matrix. For the depos...To create a surface suitable for tribological applications, a layer of nanoparticles was deposited on a metal coated substrate, followed by embedding the nanoparticles in a metal matrix. For the deposition, TiO2 and SiO2 nanoparticles were used, followed by a Cu embedding by electroplating. TiO2 particles failed to deliver satisfying results due to agglomeration. The results coming closest to achieving a monolayer were obtained with SiO2 nanoparticles. For the deposition, the SiO2 nanoparticles were attracted to the surface by utilizing zeta potential differences between the surface and the nanoparticles. To achieve an optimal zeta potential, the pH value of the deposition solution was adjusted appropriately. After their deposition, the SiO2 nanoparticles were attached to the surface by heat treatment. Afterwards, the SiO2 nanoparticles were embedded by electroplating. Best electroplating results were achieved on SiO2 nanoparticle layers with no continuous surface coverage, i.e. occasional voids between the nanoparticles.Read More
Publication Year: 2009
Publication Date: 2009-05-15
Language: en
Type: article
Indexed In: ['crossref']
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