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Study of Localized Electrochemical Deposition Using Liquid Marbles

Sunitha Radhakrishnan, Shiv Shailendar
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479820546120994

Abstract Details

2016, MS, University of Cincinnati, Engineering and Applied Science: Mechanical Engineering.
A liquid marble is a droplet of liquid coated with micro or nano-particles. A novel method of localized electrochemical deposition (LECD) using liquid marbles and the feasibility of application of this method in micro-repair has been studied. Controllability of the transportation of liquid marbles to any desired location by pick and place technique has been demonstrated. A theoretical model to predict the deposition height using a liquid marbles has been developed in this work. The height of deposition is a critical output parameter as it determines the minimum layer height in electrochemical additive manufacturing (ECAM). A physics based mathematical model using Faraday’s law of electrolysis and the knowledge of geometry of the tool and metal powder has been developed. Experiments were carried out to validate the theoretical model. Experimental results follow the trend predicted by the model. Electro deposition experiments were performed at defective spots with liquid marbles to confirm the feasibility of micro-repair using this novel technique. The corrosive property of the deposit with respect to the metal substrate has been studied. An immersion corrosion test was performed on substrates having micro spots made using LECD using 5% NaCl for 240 hours. The results were compared with specimens of the same dimension, which underwent the same corrosion testing process. It was found that the micro deposits did not affect the corrosion rate significantly and therefore localized electro deposition using liquid marbles may be considered as a potential method for micro repair.
Murali Sundaram, Ph.D. (Committee Chair)
Thomas Richard Huston, Ph.D. (Committee Member)
Kumar Vemaganti, Ph.D. (Committee Member)
66 p.
Mechanical Engineering
Liquid Marble; Localized Elecrochemical Deposition; Additive Manufacturing; Micro Repair; Modeling; Corrosion

Recommended Citations

Citations

  • Sunitha Radhakrishnan, S. S. (2016). Study of Localized Electrochemical Deposition Using Liquid Marbles [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479820546120994

    APA Style (7th edition)

  • Sunitha Radhakrishnan, Shiv Shailendar. Study of Localized Electrochemical Deposition Using Liquid Marbles. 2016. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479820546120994.

    MLA Style (8th edition)

  • Sunitha Radhakrishnan, Shiv Shailendar. "Study of Localized Electrochemical Deposition Using Liquid Marbles." Master's thesis, University of Cincinnati, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479820546120994

    Chicago Manual of Style (17th edition)

ucin1479820546120994
241
© 2016, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.