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The Effect of Pulse Voltage Amplitude and Electrolyte Flow States on Manufacture of Micro Nickel Column by Mask-less Localized Electrochemical Deposition
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Dalian University

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    Abstract:

    In order to explore the influence of different electrolyte flow states on mask-less localized electrodeposition, the nickel column was detected by stereoscopic microscopy and scanning electron microscopy, and the average deposition diameter and rate were calculated. On the basis of experiments, the effects of pulse voltage amplitude and electrolyte flow states on average deposition diameter, average deposition rate and surface morphology of micro nickel column were studied by means of control variable method. The research shows that the higher pulse voltage amplitude leads to the greater deposition rate and rougher surface of the micro-nickel column. the average deposition diameter and rate will change with the change of electrolyte flow states, and the deposition rate will increase with the increase of the flow rate of the electrolyte. The increase of the voltage in droplet, droplet and micro-jet will lead to the increase of the deposition diameter of the micro-nickel column. In the impinging jet state, the diameter of the micro-nickel column will first increase and then decrease with the increase of the voltage. At the same time, the tip of the nickel column is obviously tapered and there are "burrs" around the nickel column. The surface of nickel column varies with the velocity of each injection mode. The surface of nickel column is denser under the condition of high velocity injection.

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[Qian Ningkai, Wu Menghua, Jia Weiping, Zuo Shanshan, Wang Hui. The Effect of Pulse Voltage Amplitude and Electrolyte Flow States on Manufacture of Micro Nickel Column by Mask-less Localized Electrochemical Deposition[J]. Rare Metal Materials and Engineering,2021,50(3):918~923.]
DOI:10.12442/j. issn.1002-185X.20200342

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History
  • Received:May 19,2020
  • Revised:June 04,2020
  • Adopted:June 09,2020
  • Online: April 02,2021
  • Published: