Preparation of coloured composite films of Ni/organic pigments by immersion plating over zinc surface

Kowase, Yusuke; Shrestha, Nabeen K.; Saji, Tetsuo

doi:10.1016/j.surfcoat.2005.07.078

Cited by 6 publications

(4 citation statements)

References 18 publications

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“…Currently, various surface treatments, including anodization, ion implantation, nitridation, electroplating, and electroless deposition are used to address weaknesses such as limited room temperature plasticity, low strength, reactivity, and susceptibility to reactions [ 14 , 15 ]. However, some of these methods suffer from drawbacks such as complex processes, high costs, and environmental pollution [ 16 , 17 , 18 ]. Organic coatings can improve corrosion resistance, frictional wear properties, and aesthetics [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Study of Electroless-Deposited Zn on the Surface of Mg-Li Alloy

Yue

Cao

et al. 2023

Materials

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The Mg-Li alloy stands as the lightest metallic structural material known to date, finding a wide range of applications. However, its development has been hindered by its susceptibility to oxidation and corrosion. In this study, we aimed to address this issue by employing electroless deposition to form a protective zinc layer on the surface of a magnesium–lithium alloy. The optimization of the zinc layer was achieved through varying parameters such as the zinc dipping time (1~10 min), temperature (20~70 °C), and zinc content (20~200 g/L). Surface characterization was performed using scanning electron microscopy (SEM) and X-ray diffraction, while electrochemical tests and scratch tests were conducted to evaluate corrosion resistance and coating adhesion. The results demonstrated the successful formation of a uniform and dense pure zinc layer on the surface of the Mg-Li alloy when the zinc-dipping time was set at 5 min, the temperature was at 30 °C, and the zinc content was at 50 g/L. Under these conditions, the corrosion potential of the Mg-Li alloy experienced the greatest positive shift, reaching as high as −1.38 V. Additionally, the corrosion current was minimized, measuring at 2.78 × 10−6 A/cm2. Furthermore, the maximum arc tolerance radius was observed. Consequently, the electroless deposition of zinc onto Mg-Li alloys significantly improves their corrosion resistance and bonding, opening up new prospects for the application of zinc-plated Mg-Li alloys.

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Section: Introductionmentioning

confidence: 99%

Study of Electroless-Deposited Zn on the Surface of Mg-Li Alloy

Yue

Cao

et al. 2023

Materials

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“…Zn coating acts as anode and provides sacricial protection in galvanic corrosion. [14][15][16][17] Zn coating is therefore a preferred surface treatment to protect ferrous and ferrous based alloy materials from rusting. [14][15][16][17] Therefore there exists a need to work towards enhancing the reliability and life span of sacri-cial Zn coatings.…”

Section: Introductionmentioning

confidence: 99%

“…[14][15][16][17] Zn coating is therefore a preferred surface treatment to protect ferrous and ferrous based alloy materials from rusting. [14][15][16][17] Therefore there exists a need to work towards enhancing the reliability and life span of sacri-cial Zn coatings. There is no report yet on the investigation of morphology, texture and electrochemical properties of Zn-graphene composite coating.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical behavior of Zn–graphene composite coatings

2015

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“…Thus, using Ni and Cr films for coloring purposes is quite desirable but has not yet been achieved. Thus far, only black Ni and Cr films have been prepared by controlling the content of oxides and hydroxides in the films. , We previously reported the electrodeposition of Ni/organic pigments composite films in which the organic pigments of various colors were codeposited into an electrodeposited Ni matrix using a micelles disruption process. , Because the films were composite films of organic and inorganic compounds, they exhibited high hardness due to the Ni matrix, and the color of the film could be changed by modifying the type of organic pigment. However, from the perspective of decorative surface finishing, the composite-colored films had a drawback in that they did not exhibit a metallic luster, and instead had a dull appearance.…”

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confidence: 99%

Hard and Glossy-Colored Films Composed of Micropatterned Organic Dots and Electrodeposited Honeycomb-Shaped Nickel Walls

Kibayashi

Ogihara

Hayano

et al. 2012

ACS Appl. Mater. Interfaces

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This paper proposes a novel approach for the preparation of colored films with a metallic luster and high hardness. The colored organic films were patterned as microdots by photolithography, and then honeycomb-shaped Ni walls were electrodeposited between the micropatterning. The organic/inorganic composite films showed the hardest grade in a pencil hardness test and high durability in wear resistance tests because the honeycomb-shaped Ni walls protected the colored organic dots.

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Preparation of coloured composite films of Ni/organic pigments by immersion plating over zinc surface

Cited by 6 publications

References 18 publications

Study of Electroless-Deposited Zn on the Surface of Mg-Li Alloy

Study of Electroless-Deposited Zn on the Surface of Mg-Li Alloy

Electrochemical behavior of Zn–graphene composite coatings

Hard and Glossy-Colored Films Composed of Micropatterned Organic Dots and Electrodeposited Honeycomb-Shaped Nickel Walls

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