Electrodepositing Nickel under Electrolyte Reduced-pressure Boiling Condition

Ming, Pingmei; Lv, Wenxin; Li, Yingjie; Shang, Jingyu; Wang, Juntao

doi:10.1016/j.electacta.2013.12.094

Cited by 12 publications

(5 citation statements)

References 17 publications

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“…Literature sources indicate that the performance of any electrochemical reaction in both high and reduced pressure results in modifications in microstructural topography with an enhancement in adhesive strength towards the substrate, superior uniformity and compactness of coatings, reduction in pits and cracks 114 , refined grains and control over crystal orientation 144,145 . The experimental parameters employed under various reports are indicated in Table 5.…”

Section: Influence Of Electrolytic Pressure and Cell Atmospherementioning

confidence: 99%

Hydroxyapatite coatings: a critical review on electrodeposition parametric variations influencing crystal facet orientation towards enhanced electrochemical sensing

et al. 2022

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Section: Influence Of Electrolytic Pressure and Cell Atmospherementioning

confidence: 99%

Hydroxyapatite coatings: a critical review on electrodeposition parametric variations influencing crystal facet orientation towards enhanced electrochemical sensing

et al. 2022

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“…System of the vacuum boiling electrodeposition process (a) [166] and schematic mechanism of surface-boiling electrodeposition in the vacuum boiling electroforming process (b) [21]. Reprinted from [166], Copyright (2014), with permission from Elsevier. Reprinted from [21], Copyright (2012), with permission from Elsevier.…”

Section: Electrochemical Wet Stampingmentioning

confidence: 99%

“…Reprinted from [21], Copyright (2012), with permission from Elsevier. Evolution process of a boiling gas bubble formed under the conditions of reduced pressure during nickel electrodeposition [166]. Reprinted from [166], Copyright (2014), with permission from Elsevier.…”

Section: Electrochemical Wet Stampingmentioning

confidence: 99%

Advances in precision micro/nano-electroforming: a state-of-the-art review

Zhang

Gilchrist

2020

J. Micromech. Microeng.

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Micro/nano-electroforming has received considerable interest from various industry sectors as an advanced micro-manufacturing technique that offers high dimensional precision and replication accuracy. When tight feature tolerances and miniaturized geometries are required, electroforming provides unique advantages and cost-effective characteristics for fabrication. This paper firstly reviews the historical development of micro-electroforming, particularly within the past two decades. The fundamentals of electroforming and relevant applications are firstly discussed, and the common requirements are then proposed. Based on these requirements, we have focused on the processes of micro-electroforming from the ultraviolet lithography, electroplating, and moulding process to electroforming process characterization and optimization, bath compositions, agitation, and some hybrid processes. Progress from electrochemical micro/nano-manufacturing processes, such as 3D printing by electrodeposition and electrochemical wet stamping, is also included. The eventual nanocomposite electroforming is highlighted from the perspectives of the formation mechanism, deposition properties and relevant applications. Finally, a conclusion and future perspectives are presented. This review will demonstrate how the micro/nano-electroforming process can be further developed to meet the requirements of new product development from precision optics, micro/nano-moulding, high-performance coatings and future micro/nano-manufacturing.

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“…Voids were found in the core of the microstructures with lateral feature sizes smaller than 70 µm, due to a restricted mass transfer in the microcavities of the mold. However, it is believed that microstructures with finer feature sizes and higher aspect ratios can be achieved by further improvements in microscale mass transfer, such as ultrasonic microelectroforming [35], jet electrodeposition [36], microelectroforming under boiling conditions [37], and pulsed current microelectroforming [38].…”

Section: Feature Sizementioning

confidence: 99%

Microelectroforming of freestanding metallic microcomponents using silver-coated poly(dimethylsiloxane) molds

Zhou¹,

Su²,

Li³

2020

J. Micromech. Microeng.

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Microelectroforming is not only a key step of LIGA (Lithographie, Galvanoformung, and Abformung) and LIGA-like techniques, but also a widely used method for fabricating freestanding metallic microcomponents. Currently, the commonly used molds, consisting of photoresist microstructures which are prepared by lithographic techniques and conductive substrates, limit the development of microelectroforming to a certain degree due to their high cost and complicated processing steps. In this paper, a novel low-cost and net-shaped microelectroforming method using silver (Ag)-coated poly(dimethylsiloxane) (PDMS) molds is demonstrated to fabricate freestanding metallic microcomponents. Pristine PDMS molds are first replicated from a microstructured master using soft lithography. Then polydopamine is adhered to the surfaces of the pristine PDMS molds and followed by electroless deposition of Ag nanoparticle coatings. Subsequently, metal atoms are electrodeposited on the Ag-coated PDMS molds to form metallic microcomponents. After microelectroforming, the Ag coatings are peeled off from the molds and adhered to the surfaces of the metallic microcomponents during the demolding process. However, the molds can be repaired repeatedly using electroless deposition of Ag coatings on the polydopamine films, and the Ag coatings adhered to the surfaces of metallic microcomponents can be completely removed by immersion in ammonia water. Therefore, the Ag-coated PDMS molds can be reused several times. The application of this method for fabricating freestanding metallic microcomponents is demonstrated by producing nickel microcomponents. The results show that freestanding nickel microcomponents with precise dimensions and low surface roughnesses can be reliably achieved. We believe that this method has great potential for fabricating metallic microcomponents, microparts, and micropatterns.

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Electrodepositing Nickel under Electrolyte Reduced-pressure Boiling Condition

Cited by 12 publications

References 17 publications

Hydroxyapatite coatings: a critical review on electrodeposition parametric variations influencing crystal facet orientation towards enhanced electrochemical sensing

Hydroxyapatite coatings: a critical review on electrodeposition parametric variations influencing crystal facet orientation towards enhanced electrochemical sensing

Advances in precision micro/nano-electroforming: a state-of-the-art review

Microelectroforming of freestanding metallic microcomponents using silver-coated poly(dimethylsiloxane) molds

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