Recent trends and developments in two-dimensional materials based electrodeposited nickel nanocomposite coatings

Sreekumar, Revathy; Nair, Aswathy S.; Sreejakumari, S.S.

doi:10.1016/j.flatc.2022.100434

Cited by 18 publications

(3 citation statements)

References 223 publications

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“…The nickel electroplating process molded using a thick photoresist was used to fabricate micro-biopsy tools with various tip shapes and designs. The specific mechanical properties can vary greatly depending on the conditions of deposition, post-treatment, and even the quality of the base material [47]. Recently, simulation methods have also been used to predict mechanical characteristics through experiments on the conditions of deposition [48] and simulations on fluid and electric field distribution [49].…”

Section: Discussionmentioning

confidence: 99%

A Planar-Type Micro-Biopsy Tool for a Capsule-Type Endoscope Using a One-Step Nickel Electroplating Process

Moon

2023

Micromachines

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Millimeter-scale biopsy tools combined with an endoscope instrument have been widely used for minimal invasive surgery and medical diagnosis. Recently, a capsule-type endoscope was developed, which requires micromachining to fabricate micro-scale biopsy tools that have a sharp tip and other complex features, e.g., nanometer-scale end-tip sharpness and a complex scalpel design. However, conventional machining approaches are not cost-effective for mass production and cannot fabricate the micrometer-scale features needed for biopsy tools. Here, we demonstrate an electroplated nickel micro-biopsy tool which features a planar shape and is suitable to be equipped with a capsule-type endoscope. Planar-type micro-biopsy tools are designed, fabricated, and evaluated through in vitro tissue dissection experiments. Various micro-biopsy tools with a long shaft and sharp tip can be easily fabricated using a thick photoresist (SU8) mold via a simple one-step lithography and nickel electroplating process. The characteristics of various micro-biopsy tool design features, including a tip taper angle, different tool geometries, and a cutting scalpel, are evaluated for efficient tissue extraction from mice intestine. These fabricated biopsy tools have shown appropriate strength and sharpness with a sufficient amount of tissue extraction for clinical applications, e.g., cancer tissue biopsy. These micro-scale biopsy tools could be easily integrated with a capsule-type endoscope and conventional forceps.

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Section: Discussionmentioning

confidence: 99%

A Planar-Type Micro-Biopsy Tool for a Capsule-Type Endoscope Using a One-Step Nickel Electroplating Process

Moon

2023

Micromachines

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“…The deposition of hybrid coatings was obtained by combining ESD with the electrodeposition of coatings possessing high resistance to corrosion such as nanocrystalline and resistive-to-corrosion Fe-W [22,23], Ni, and Cr. Indeed, electrodeposition has gained substantial attention due to its advantages, such as being efficient, reliable, economical and simple to operate among the different methods used to protect industrial components from corrosion, wear/abrasion failures [24]. Because of the exceptional improvement in hardness, corrosion and wear properties that can be achieved from electroplated nickel and chromium coatings, they are being widely utilized in the manufacturing, automotive, aviation and electrical industries.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Wear and Corrosion of Novel Electrospark and Electrospark–Electrochemical Hybrid Coatings Based on Carbon Steels

et al. 2023

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The electrospark deposition (ESD) technique is a low-heat-input process that has great potential for coating applications and the restoration of damaged high-value parts. Carbon steels are commonly used as a substrate material for ESD coatings. However, we demonstrated that carbon steels could be used successfully as the electrode tool for the ESD process. Furthermore, ESD coatings commonly have a high as–deposited roughness. In view of this, in order to reduce the roughness of the ESD coatings, electrodeposition as a tool to alter surface morphology was investigated. Hence, the micro-leveling power of several electrolytes for Ni, Fe-W, Fe, and Cr electrodeposition were evaluated. The maximum leveling effect was detected for Ni electroplated from the Watts electrolyte. Thus, the novel hybrid coatings based on an ESD layer and a subsequent layer of electrodeposited Ni were obtained. ESD layers were obtained by using the following electrode tools as anodes: several types of carbon steels (St20, St30, and St45), alloys T15K6 (WC + TiC + Co), CuNiZn; and NiCr. The morphology and structure of the obtained hybrid coatings with an electrodeposited Ni top-layer was analyzed and compared to ESD coatings from the point of view of their wear and corrosion behavior. The wear rate of the novel ESD coatings based on carbon steels was comparable with coatings obtained using the NiCr electrode tool. Moreover, for all the studied cases, the corrosion resistance of the hybrid coatings was higher than for their ESD counterparts and close to electrolytic chromium.

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“…In graphene oxide, carbon atoms are bonded to oxide functional groups (carbonyl, carboxyl, epoxy, hydroxide, etc.). Because of this, graphene oxide becomes hydrophilic, forms stable dispersions in aqueous and non-aqueous environments, demonstrates high chemical activity, and has electrical resistance [ 17 , 18 , 19 ]. Graphene and graphene oxide are widely used [ 20 , 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition and Properties of Composite Ni Coatings Modified with Multilayer Graphene Oxide

Tseluikin,

Dzhumieva,

Yakovlev

et al. 2023

Micromachines

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Within the framework of this study, Ni-based composite electrochemical coatings (CECs) modified with multilayer graphene oxide (GO) processed using microwave radiation have been deposited. The process of these coatings’ electrodeposition in the potentiodynamic mode has been studied. The structure of Ni–GO and Ni–GO (MW) CECs has been studied using X-ray phase analysis (XPA) and scanning electron microscopy (SEM).It has been shown that the addition of GO into a nickel deposit contributes to the formation of uniform fine-grained coatings. As a result, the microhardness of the Ni–GO (MW) CECs increases by 1.40 times compared to Ni without GO. The corrosion–electrochemical behavior of nickel CECs in 0.5 M H2SO4 solution was researched. It was established that the corrosion rate of the nickel–GO (MW) CEC in 3.5% NaCl decreases by about 1.70 times in contrast to unmodified nickel coatings. This effect is due to the absence of agglomeration of the graphene oxide in the volume of the nickel matrix and the impermeability of GO particles to the corrosive environment.

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Recent trends and developments in two-dimensional materials based electrodeposited nickel nanocomposite coatings

Cited by 18 publications

References 223 publications

A Planar-Type Micro-Biopsy Tool for a Capsule-Type Endoscope Using a One-Step Nickel Electroplating Process

A Planar-Type Micro-Biopsy Tool for a Capsule-Type Endoscope Using a One-Step Nickel Electroplating Process

Synthesis, Wear and Corrosion of Novel Electrospark and Electrospark–Electrochemical Hybrid Coatings Based on Carbon Steels

Electrodeposition and Properties of Composite Ni Coatings Modified with Multilayer Graphene Oxide

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