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The effects of additives, particles load and current density on codeposition of SiC particles in NiP nanocomposite coatings
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.
Jönköping University, School of Engineering, JTH, Materials and Manufacturing.ORCID iD: 0000-0003-2924-137X
2019 (English)In: Coatings, ISSN 2079-6412, Vol. 9, no 9, article id 554Article in journal (Refereed) Published
Abstract [en]

In this study, electrodeposition of NiP composite coatings with the addition of SiC 100 nm was carried out on low carbon steel studying the effect of additives (sodium dodecyl sulfate, saccharin), particles load (10 or 20 g/L) and current density (1, 2 and 4 A/dm2). As a benchmark, coatings from an additive-free bath were also deposited, despite additives being essential for a good quality of the coatings. The coating's morphology and composition were evaluated by scanning electron microscope (SEM) equipped with energy dispersive spectroscopy (EDS). It was shown that by addition of sodium dodecyl sulfate (SDS), pure NiP coating with a higher P content was achieved, and their morphology changed to nodular. SDS also reduced the codeposited fraction of SiC particles, while saccharin increased it. SiC loading and current density had less impact respect to the additives on codeposition of SiC particles. Finally, the microhardness of NiP coatings did not increase linearly by codeposition of SiC particles. 

Place, publisher, year, edition, pages
MDPI, 2019. Vol. 9, no 9, article id 554
Keywords [en]
Additives, Composite coating, Microhardness, NiP coating, SiC particle
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:hj:diva-46296DOI: 10.3390/coatings9090554ISI: 000487973600062Scopus ID: 2-s2.0-85072166505Local ID: GOA JTH 2019OAI: oai:DiVA.org:hj-46296DiVA, id: diva2:1353314
Available from: 2019-09-23 Created: 2019-09-23 Last updated: 2020-01-21Bibliographically approved

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Ahmadkhaniha, DonyaZanella, Caterina

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