Nickel–carbon composite plating using a Watts nickel electroplating bath

Kamimoto, Yuki; Okura, Shintaro; Hagio, Takeshi; Wada, Toshiki; Tanaka, Hidekazu; Hara, Hideki; Deevanhxay, Phengxay; Ichino, Ryoichi

doi:10.1007/s42452-020-1991-1

Cited by 7 publications

(7 citation statements)

References 20 publications

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“…The nickel-Watts plating solution was produced as described elsewhere. 84 The alkaline copper-plating solution was modified from the cited recipe 85 : For a litre of the solution, basic copper carbonate (30 g) was initially dissolved in etidronic acid (65 wt%; 150 g), and made up to 600 mL with deionized water, before the addition of sulfamic acid (50 g) and potassium pyrophosphate (100 g). The solution was raised to pH 6 by the slow addition of potassium hydroxide (~70 g); gelation occurs at pH 5, which redissolves at higher pH.…”

Section: Methodsmentioning

confidence: 99%

Tribology of Copper Metal-Matrix Composites Reinforced with Fluorinated Graphene Oxide Nanosheets: Implications for Solid Lubricants in Mechanical Switches

Savjani

Mercadillo

Hodgeman

et al. 2023

Preprint

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Applications of copper coatings on steel switching mechanisms are abundant owing to their high conductivities and corrosion resistance that they impart on the engineered assemblies. However, applications of these coatings on such moving parts are limited due to their poor tribological properties; tendencies to generate high friction and susceptibility to degradative wear. In this study, we have fabricated a fluorinated graphene oxide-copper metal matrix composite (FGO-CMMC) on an AISI52100 bearing steel substrate by a simple electrodeposition process in water. The FGO-CMMC coatings exhibited excellent lubrication performance under pin-on-disk (PoD) tribological sliding at 1N load, which reduced CoF by 63 and 69%, compared to the GO-CMMC and pure copper coatings that were also prepared. Furthermore, FGO-CMMC achieved low friction and low wear at higher sliding loads. The lubrication enhancement of the FGO-CMMCs is attributed to the tribochemical reaction of FGO with the AISI 52100 steel counterface initiated by sliding load. The formation of an asymmetric tribofilm structure on the sliding track is critical; the performance of the FGO/Cu tribofilm formed in the track is boosted by the continued fluorination of the counterface surface during PoD sliding, passivating the tribosystem from adhesion-driven breakdown. The FGO-CMMC and GO-CMMC coatings also provide increased corrosion protection reaching 94.2 and 91.6 % compared to the bare steel substrate, allowing for the preservation of the long-term low friction performance of the coating. Other influences include the improved interlaminar shear strength of the FGO-containing composite. The excellent lubrication performance of copper coatings by FGO incorporation makes the CMMC a promising solid lubricant candidate for use in mechanical engineering applications.

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Section: Methodsmentioning

confidence: 99%

Tribology of Copper Metal-Matrix Composites Reinforced with Fluorinated Graphene Oxide Nanosheets: Implications for Solid Lubricants in Mechanical Switches

Savjani

Mercadillo

Hodgeman

et al. 2023

Preprint

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“…A magnetic stirrer was used to agitate the electrolyte, which comprised 40 g/L of nickel chloride hexahydrate, 210 g/L nickel sulfate, and 25 g/L boric acid. 31 Sodium hydroxide was used to adjust the electrolyte’s pH to 6. The electrodeposition was carried out for 5 min at a steady DC voltage of 40 V. The electrolyte was kept at a temperature of 308.15 K. The samples were dried in the air for 24 h at ambient temperature before being stored in a desiccator until further testing.…”

Section: Experimental Partmentioning

confidence: 99%

“…The electrodes were spaced 0.5 cm apart. A magnetic stirrer was used to agitate the electrolyte, which comprised 40 g/L of nickel chloride hexahydrate, 210 g/L nickel sulfate, and 25 g/L boric acid . Sodium hydroxide was used to adjust the electrolyte’s pH to 6.…”

Section: Experimental Partmentioning

confidence: 99%

Study of the Corrosion of Nickel–Chromium Alloy in an Acidic Solution Protected by Nickel Nanoparticles

2022

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This study uses nickel nanoparticles coated on the nickel–chromium (Ni–Cr) alloy by the electrodeposition technique to protect the alloy against corrosion. An open-circuit potential and potentiodynamic and linear polarization resistance in a 1 M H 2 SO 4 solution saturated with carbon dioxide were used to study the anticorrosion performance of nanoparticle coatings. When coated with nanomaterials, the corrosion rate of Ni–Cr alloy was lower than when it was bare, and the potential for corrosion increased from −0.433 V for uncoated Ni–Cr alloy to −0.103 V when the electrodes were exposed to saturated calomel. Electrochemical experiments show that nickel-coated Ni–Cr alloy corrosion in sulfuric acid media has high protective characteristics, with an efficiency of 83.69% at 0.165 mA/cm 2 current density when pH = 1 is used. As demonstrated by the results of this research, the nickel–chromium alloy can be protected from corrosion in acidic media by a low-acidity bath coating layer. Surface morphologies have shown that coatings at different acidic scales may be able to resist an acid attack because of their excellent adherence to the nickel–chromium alloy surface. Measures for determining and studying the composition of the alloy surface’s protective covering were improved using X-ray diffraction (XRD).

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“…The amount of CNT incorporated in the Ni-W/CNT composite plating were estimated by measuring the carbon content in the platings [27,28]. The carbon content of the composite platings was determined by utilizing a carbon-sulfur analyzer (EMIA-510, Horiba, Kyoto, Japan).…”

Section: Carbon Contents Measurements Of Platingmentioning

confidence: 99%

Electrodeposition of Ni-W/CNT Composite Plating and Its Potential as Coating for PEMFC Bipolar Plate

et al. 2020

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In this study, Ni-W/carbon nanotube (CNT) composite platings are electrodeposited onto steel plate as a possible coating material for the polymer electrolyte membrane fuel cell (PEMFC) bipolar plate, which requires high corrosion resistance under acidic environment and low contact resistance. The dispersibility of CNT in the plating bath is improved by surface modification of CNT through hydrothermal treatment in mixed acid solution. The change in electrodeposition behavior of Ni-W plating by CNT addition is investigated by cathodic polarization measurement. The corrosion resistance under acidic environment is evaluated using 0.5M H2SO4 solution and contact resistance of the composite platings is measured and compared with Ni and Ni-W plating. The surface modification of CNT through hydrothermal treatment is found to increase the CNT content in the Ni-W/CNT composite plating up to 0.33 mass.% and sufficient incorporation of hydrothermally treated CNT in Ni-W plating results in low contact resistance and enhanced corrosion resistance than pristine Ni-W plating.

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Nickel–carbon composite plating using a Watts nickel electroplating bath

Cited by 7 publications

References 20 publications

Tribology of Copper Metal-Matrix Composites Reinforced with Fluorinated Graphene Oxide Nanosheets: Implications for Solid Lubricants in Mechanical Switches

Tribology of Copper Metal-Matrix Composites Reinforced with Fluorinated Graphene Oxide Nanosheets: Implications for Solid Lubricants in Mechanical Switches

Study of the Corrosion of Nickel–Chromium Alloy in an Acidic Solution Protected by Nickel Nanoparticles

Electrodeposition of Ni-W/CNT Composite Plating and Its Potential as Coating for PEMFC Bipolar Plate

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