UNIV. NEWS. NORTH-CAUCAS. REG. TECHNICAL SCIENCES SERIES. 2022; 1: 37-42
http://dx.doi.org/10.17213/1560-3644-2022-1-37-42
INFLUENCE OF THE PARAMETERS OF PULSE POLARIZATION REGIMES ON THE GRANULOMETRIC COMPOSITION OF NICKEL POWDERS
Lipkin Mikhail S. – Doctor of Technical Sciences, Associate Professor, Head of the Department «Chemical Technology», lipkin@yandex.ru
Lipkin Semen M. – Candidate of Technical Sciences, Associate Professor, Department «Computer Science and automation of Scientific Research».
Gulyaev Ivan S. – Student, Department «Computer Science and Automation of Scientific Research».
Moskalev Yuriу G.– Master Student, Department «Chemical Technology».
Lipkin Valeriy M. – Candidate of Technical Sciences, Associate Professor, Department «Chemical Technology», syan199165@gmail.com
Kuznetsov Denis N. – Candidate, Department «Chemical technology».
Korbova Ekaterina V.– Graduate Student, Department «Chemical Technology», war_wara@inbox.ru
Yatsenko Alexey N. – Candidate of Technical Sciences, Associate Professor, Department «Physics and Photonics».
Abstract
The purpose of this work was to establish the laws governing the production of nickel powders in the nanoscale range under conditions of pulsed polarization and the application of tribological effects on the electrode under study. It was established by the conducted studies that the fineness of metal powders increases with a decrease in the probability of formation of crystalline nuclei and a decrease in the probability of cluster fusion after separation from the electrode, which is facilitated by a decrease in current density, the presence of cationic surfactants in the electrolyte, and the periodic removal of formed clusters from the electrode surface. For nickel powders, the shortest growth period of nickel powder particles corresponds to a pulse and pause time of 0.1 s and the presence of alkyltrimethylammonium chloride in the electrolyte. Nickel powder was obtained under optimal conditions, in which there is a nanosized fraction with a particle size of 15 – 50 nm.
Keywords: electrolytic powder, nickel, dendrite, particle, current density, chronopotentiogram, capacitive characteristic of EDL
Full text: [in elibrary.ru]
References
1. Kwok Wei Shah, Yong Lu. Morphology, large scale synthesis and building applications of coppernanomaterials. Construction and Building Materials. 2018; (180): 544-578.
2. Hamburg Yu.D. Electrocrystallization of metals and alloys. Moscow: Janus; 1997. 384 p.
3. Dong L.L., Ahangarkani M., Chen W.G., Zhang Y.S. Recent progress in development of tungsten-nikel composites: Fabrication, modification and applications, International Journal of Refractory. Metals & Hard Materials. 2018; (75): 30-42.
4. Raja M. Production of copper nanoparticles by electrochemical process. Powder Metallurgy and Metal Ceramics. 2008; 47 (7–8): 402-405.
5. Berezhnoy Yu.M. Lipkin V.M., Kuznetsov D.N., Romanova O.N. The effect of cathode surface treatment on the properties of electrodeposited copper powders. Materials Science Forum - 2020. Vol. 992: The International Scientific Conference “FarEastCon”, 1-4 October, 2019, Vladivostok, Russia. P. 540-544. (In Russ.).
6. Lipkin M.S. et al. Study of the reversibility of electrolytic tin powder obtained from an ionic liquid. Perspective materials – 2020. (11): 52-58. (In Russ.).
7. Lipkin V.M., Fesenko L.N., Lipkin S.M. Tinpowder selector deposition from choline chloridebasedionicliquid. SolidStatePhenomena – 2018, vol. 284: Materials Engineering and Technologies for Production and Processing IV ICIE-2018. 2018. P. 1252-1256. (In Russ.).
8. Lipkin M. S. et al. Influence of the properties of nickel electrolytic powders on the characteristics of a metal powder electrode of an electrochemical capacitor. Izv. vuzov. Sev.-Kavk. region. Techn. nauki=Bulletin of Higher Educational Institutions. North Caucasus Region. Technical Sciences. 2020; (2): 84-88. DOI: 10.17213/1560-3644-2020-2-84-88 (In Russ.).
9. Kuzharov A.S. et al. Green tribology: utilization and processing of spent Ni-Cd batteries into functional nanomaterials for tribotechnical purposes. Friction and wear. 2015. 36 (4): 400-408. (In Russ.).
10. Liang Wu, John E. Graves, Andrew J. Cobley. (2018) Mechanism for the development of Sn-Cu alloy coatings produced by pulsed current electrodeposition. Materials Letters. 2018; (17): 120-123.
11. Popov K.I. et al. The effect of reversing current deposition the apparent density of electrolytic copper powder. Journal of Serbian Chemistry Society. 2002; (1): 61-67.
12. Lipkin M.S. et al. Synthesis of Metal Nano-Powders in Nonstationary Electrolysis Conditions. ECS Meeting Abstracts - Cancun, Mexico. 2014. - Emerging Nanomaterials and Devices 1. Available at: https://iopscience.iop.org/issue/2151-2043/MA2014-02/38 (accessed 23.01.2022)..