Статья
2020

Electrochemical Deposition of NiFe Alloy at a Temperature of 70°C


R. D. Tikhonov R. D. Tikhonov
Российский электрохимический журнал
https://doi.org/10.1134/S1023193520070058
Abstract / Full Text

The heating of chloride electrolyte to a temperature of 70°C excludes anomalous codeposition of NiFe alloy components as a result of a change of the nature of discharging iron ions from the single-charged (Fe2+Cl)+ ions to the double-charged ions. Chloride electrolyte with a pH value corrected by hydrochloric acid provides the electrochemical deposition of permalloy at a concentration ratio cNi/cFe = 4.26. Conventional (not anomalous) codeposition of nickel and iron is observed also in the dilute solutions at room temperature due to their virtually complete dissociation.

Author information
  • Scientific-Manufacturing Complex “Technological Center”, 124498, Zelenograd, Moscow, Russia

    R. D. Tikhonov

References
  1. Korovin, N.V., Cathodic process in the electrodeposition of iron–nickel alloy, Zh. Neorg. Khim., 1957, vol. 2, no. 9, p. 2259.
  2. Korovin, N.V., Obshchaya khimiya (General Chemistry), Moscow: Visshaya Shkola, 1998, p. 559.
  3. Nakano, H., Matsuno, M., Oue, S., Yano, M., Kobayashi, Sh., and Fukushima H., Mechanism of anomalous type electrodeposition of Fe–Ni alloys from sulfate solutions, Mater. Trans.,JIM, 2004, vol. 45, no. 11, p. 3130.
  4. Man-Seung, Lee, Use of the Bromley equation for the analysis of ionic equilibria in mixed ferric and ferrous chloride solutions at 25°C, Metall. Mater. Trans. B, 2006, vol. 37B, p. 173.
  5. Tikhonov, R.D., Electrodeposition of NiFe alloy for production of integral microschemes, Galvanotekhn. Obrab. Poverkhn., 2015, no 4, p. 13.
  6. Tikhonov, R.D., Normal electrochemical deposition of NiFe films, Adv. Research, 2017, vol. 11, no. 2, p. 1.
  7. Tikhonov, R.D., Polomoshnov, S.A., and Kostyuk, D.V., Spectrophotometric monitoring of chloride electrolyte for electrochemical deposition of permalloy, Izv. Vyssh. Uchebn. Zaved.,Elektronika, 2019, vol. 24, no. 2, p. 129.
  8. Tikhonov, R., Congruent Electrochemical Deposition of NiFe Alloy, Lambert Academic Publ., 2019, p. 193.
  9. Schiavone, G., Murray, J., Perry, R., Mount, A.R., Marc, P., Desmulliez, Y., Tang, F., and Walton, A.J., Integration of electrodeposited Ni–Fe in MEMS with low-temperature deposition and etch processes, Materials (Basel), 2017, vol. 10, no. 3, p. 323.
  10. Wang, F., Li, L., Qiu, Sh., and Wang, H., Ferronickel preparation using Ni–Fe co-deposition process, J. Central South Univ., January 26, 2017.
  11. Torabinejad, V., Aliofkhazraei, M., Assareh, S., Allahyarzadeh, M.H., and Rouhaghdam S., Electrodeposition of Ni–Fe alloys, composites, and nano coatings–A review, J. Alloys Compd., 2017, no. 691, p. 841.