Fabrication of microprism mould by electroforming with high electrolyte flowrate

Qu, Ningsong; Qian, Wang-jie; Cai, Wendi; Xing, Z H; Zhu, Zengwei; Zeng, Yongbin

doi:10.1179/0020296713z.000000000104

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…Electroforming has been applied to fabricate many highly precise products, such as compact disks, stampers, and masters for non-spherical mirrors [5][6][7]. However, the lower microhardness of electroformed materials has prevented its wider usage in general plastics and optical mold making.…”

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confidence: 99%

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Preparation of a Microprism Ni-Ceo₂Nanocomposite Mold by Electroforming

Qian

et al. 2014

Materials and Manufacturing Processes

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Electroforming has been applied in the fabrication of a mold. However, its lower microhardness has prevented its wider usage in general plastics and optical mold making. In this paper, CeO 2 nanoparticles is first added to the bath to improve the microhardness of the electroformed microprism mold. Compared with microprism pure nickel mold, the microhardness and the wear resistance of the microprism Ni-CeO 2 nanocomposite mold were significantly improved. The maximum microhardness of 530 HV was observed in the nanocomposite deposits obtained at the current density of 1 Adm -2 , and the microhardness of pure nickel is approximately 291 HV. Finally, a microprism Ni-CeO 2 nanocomposite mold was successfully electroformed.

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confidence: 99%

“…In our previous study, a large-area functional surface nickel mold was successfully prepared by electroforming [5]. In this paper, microprism Ni-CeO 2 nanocomposite mold is first electroformed using our previous experimental setup.…”

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confidence: 99%

Preparation of a Microprism Ni-Ceo₂Nanocomposite Mold by Electroforming

Qian

et al. 2014

Materials and Manufacturing Processes

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“…The versatility offered by the above features, plus facile assembly and electrical connections makes the plane parallel geometry, in an agitated beaker, a stirred tank or a channel flow cell, the preferred choice for many applications. Some relevant examples are the chlor-alkali industry, 14 organic electrosynthesis, [15][16][17] inorganic electrosynthesis, 5,18 , redox flow batteries, 19 fuel cells, 20 metal air batteries, 21 electroplating of static components, 22 electroplating of moving sheets, 23 electroforming, 24 electrowinning, 5 electrodialysis, 25 and environmental treatment. 26,27 In fact, this cell configuration has been applied in industry for at least 130 years.…”

Section: A Ementioning

confidence: 99%

“…130 Electrolyte mean linear velocities over 100 cm s −1 and up to 1,500 cm s −1 in a turbulent flow regime have been utilised during electroforming in plane parallel cells with the purpose of controlling surface morphology. 24,174 One of the highest velocities studied is due to Landolt et al, 175 who obtained electrochemical mass transfer correlations at a flow velocitity up to 2,000 cm s −1 in a specially designed apparatus. The possibility of using drag-reducing additives 176 in electrolytes and the study of their effects on electrochemical reactions are areas of opportunity.…”

Section: Features Of the Plane Parallel Flow Cellmentioning

confidence: 99%

Critical Review—The Versatile Plane Parallel Electrode Geometry: An Illustrated Review

Arenas

León

Walsh

2020

J. Electrochem. Soc.

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The features of the plane parallel geometry are reviewed since this cell geometry occupies a prominent position, both in the laboratory and in industry. The simple parallel plate can be enhanced by inclusion of porous, 3D electrodes, structured surfaces and bipolar electrical connections, with adequate attention to the reaction environment. Unit cells are often arranged in a modular, filter-press format. Scale-up is achieved by increasing the size of each electrode, the number of electrodes in a stack or the number of stacks in a system. The use of turbulence promoters in the flow channel, textured (including nanostructured) and porous electrodes as well as cell division by an ion exchange membrane can considerably widen the scope of the plane parallel geometry. Features of plane parallel cell designs are illustrated by selected examples from our laboratories and industry, including a fuel cell, an electrosynthesis cell and hybrid redox flow cells for energy storage. Recent trends include the development of microflow cells for electrosynthesis, 3D printing of fast prototype cells and a range of computational models to simulate reaction environment and rationalise performance. Future research needs are highlighted.

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Pulsed electrochemical micromachining for generating micro-dimple arrays on a cylindrical surface with a flexible mask

Chen

et al. 2015

Applied Surface Science

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Fabrication of microprism mould by electroforming with high electrolyte flowrate

Cited by 4 publications

References 8 publications

Preparation of a Microprism Ni-Ceo₂Nanocomposite Mold by Electroforming

Preparation of a Microprism Ni-Ceo₂Nanocomposite Mold by Electroforming

Critical Review—The Versatile Plane Parallel Electrode Geometry: An Illustrated Review

Pulsed electrochemical micromachining for generating micro-dimple arrays on a cylindrical surface with a flexible mask

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Fabrication of microprism mould by electroforming with high electrolyte flowrate

Cited by 4 publications

References 8 publications

Preparation of a Microprism Ni-Ceo2Nanocomposite Mold by Electroforming

Preparation of a Microprism Ni-Ceo2Nanocomposite Mold by Electroforming

Critical Review—The Versatile Plane Parallel Electrode Geometry: An Illustrated Review

Pulsed electrochemical micromachining for generating micro-dimple arrays on a cylindrical surface with a flexible mask

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Product

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Preparation of a Microprism Ni-Ceo₂Nanocomposite Mold by Electroforming

Preparation of a Microprism Ni-Ceo₂Nanocomposite Mold by Electroforming