Electrochemical Local Maskless Micro/Nanoscale Deposition, Dissolution, and Oxidation of Metals and Semiconductors (A Review)

Давыдов, А. Д.; Волгин, В. М.

doi:10.1134/s1023193520010036

Cited by 18 publications

(13 citation statements)

References 142 publications

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“…The method is evolving and being perfected along the line of pulse machining. With pulsed current, anodic dissolution can be made more confined, and precision in transfer of the tool shape can be improved [2][3][4][5][6][7][8][9]. In addition, it seems to be nearly impossible to use ECM for processing large surfaces while not using pulsed machining.…”

Section: Introductionmentioning

confidence: 99%

High-Rate Pulsed Galvanostatic Anodic Dissolution of Chromium−Nickel Steels in Electrolytes for Electrochemical Machining: The Role of Surface Temperature

Дикусар

Likrizon

Dikusar

2021

Surf. Engin. Appl.Electrochem.

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A pulsed galvanostatic anodic dissolution of chromium−nickel steels (types Kh18N10 (Cr18Ni10) and KhN35VT (CrNi35WT)) under the conditions of electrochemical machining is studied in chloride, nitrate, and mixed chloride−nitrate electrolytes at current densities up to 100 A/cm 2 . In all the considered solutions (except for the dissolution of CrNi35WT in chloride solutions), for relative pulse durations s  2 (duty cycle D  50%), the faradaic rate of dissolution reaches a limiting value of ~0.18 mg/C, irrespective of pulse duration (from 20 s to 2 ms), which translates into the current efficiencies of alloy dissolution of 50 and 68% for the Cr18Ni10 and CrNi35WT alloys, respectively. Using direct current for processing (i.e., s < 2) boosts the current efficiency, and the rise in surface temperature is crucial to this effect.

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Section: Introductionmentioning

confidence: 99%

High-Rate Pulsed Galvanostatic Anodic Dissolution of Chromium−Nickel Steels in Electrolytes for Electrochemical Machining: The Role of Surface Temperature

Дикусар

Likrizon

Dikusar

2021

Surf. Engin. Appl.Electrochem.

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“…metals, alloys, polymers, etc.). It can also be spatially localized to generate features from nm to mm-size by electrochemical writing [40][41][42], which is achieved typically by scanning electrochemical probe methods such as SECM [43][44][45] or scanning droplet cell (SDC) [46,47]. The early works have been reviewed [43,48,49].…”

Section: Application Of the Shaped Gel For Electrochemical Writingmentioning

confidence: 99%

Rational shaping of hydrogel by electrodeposition under fluid mechanics for electrochemical writing on complex shaped surfaces at microscale

Helú¹,

Liu²

2021

Chemical Engineering Journal

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“…Anodic dissolution of metals and alloys is a basis of a number of processes aimed at both imparting specific properties to metal surfaces and metal shaping, i.e., the processes which render them the required shape and size and involving also the micro-and nanoscale levels [1][2][3][4][5][6][7][8]. This work concentrates on high-rate anodic dissolution processes that occur at high anodic current densities and high anodic potentials and are considerably far away from thermodynamic equilibrium.…”

Section: Introductionmentioning

confidence: 99%

Formation and Breakdown of Oxide Films in High-Rate Anodic Dissolution of Chromium–Nickel Steels in Electrolytes for Electrochemical Machining

Дикусар

Силкин

2022

Surf. Engin. Appl.Electrochem.

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It is shown that, in high-rate pulsed galvanostatic anodic dissolution of type CSN17335 and AISI 304 chromium-nickel steels in electrolytes for electrochemical machining (ECM) (chloride, nitrate, and mixed chloride-nitrate solutions with a conductivity of 0.15 S/cm) using microsecond pulses with a duration of 20-2000 μs and current densities in the range of 1-100 A/cm 2 , a substantial fraction of charge (up to ~40%) is spent on the formation of a passivating oxide film with a semiconducting behavior. The electrochemical treatment therefore directly involves the oxide film, not the alloy. As a consequence, the current efficiency of ECM of these materials is ~60-70%, depending on the alloy composition. When using direct current, the rate of machining increases as a result of the oxide film breakdown due to its thermokinetic instability ("thermal explosion") caused by a rise in the surface temperature.

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Electrochemical Local Maskless Micro/Nanoscale Deposition, Dissolution, and Oxidation of Metals and Semiconductors (A Review)

Cited by 18 publications

References 142 publications

High-Rate Pulsed Galvanostatic Anodic Dissolution of Chromium−Nickel Steels in Electrolytes for Electrochemical Machining: The Role of Surface Temperature

High-Rate Pulsed Galvanostatic Anodic Dissolution of Chromium−Nickel Steels in Electrolytes for Electrochemical Machining: The Role of Surface Temperature

Rational shaping of hydrogel by electrodeposition under fluid mechanics for electrochemical writing on complex shaped surfaces at microscale

Formation and Breakdown of Oxide Films in High-Rate Anodic Dissolution of Chromium–Nickel Steels in Electrolytes for Electrochemical Machining

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