Thermal protective ability of electrochemically deposited nickel and nickel – boron coatings

  • Sergey S. Perevoznikov Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus
  • Ekaterina V. Makovskaya Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus
  • Ludmila S. Tsybulskaya Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus
  • Vladislav S. Shendyukov Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus
DOI: https://doi.org/10.33581/2520-257X-2022-2-52-63

Abstract

The thermal protective ability of electrochemically deposited Ni and Ni – B coatings was investigated with the aim of their potential application in the production of lamella-type under-die coolers. It has been established that all studied nickelbased coatings retain thermal stability when heated in an air atmosphere in the temperature range from 500 to 700 °C. At a higher annealing temperature (800 °C), the coatings are oxidised (to the greatest extent the nickel coating) with the formation of an oxide layer up to 7–8 μm thick, the main product of oxidation is Ni0.8Cu0.2O. It is shown that the Ni – B coating with a boron content of 4.5 at. % exhibits the highest thermal stability due to the formation of a film of nickel borate (Ni3(BO3)2) on its surface during annealing. A thin continuous film of borate prevents the contact of atmospheric oxygen with the surface and, accordingly, the formation of mixed oxides of copper and nickel, which are a consequence of the thermal instability of nickel coatings during annealing.

Author Biographies

Sergey S. Perevoznikov, Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus

researcher at the laboratory of thin film chemistry

Ekaterina V. Makovskaya, Belarusian State University, 4 Niezaliežnasci Avenue, Minsk 220030, Belarus

student at the faculty of chemistry

Ludmila S. Tsybulskaya, Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus

PhD (chemistry), docent; leading researcher at the laboratory of thin film chemistry

Vladislav S. Shendyukov, Research Institute for Physical Chemical Problems, Belarusian State University, 14 Lieninhradskaja Street, Minsk 220006, Belarus

researcher at the laboratory of thin film chemistry

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Published
2022-08-23
Keywords: electrodeposition, nickel – boron coating, composition, structure after annealing, heat resistance
Supporting Agencies The work was carried with the financial support of the Ministry of Education of the Republic of Belarus.
How to Cite
Perevoznikov, S. S., Makovskaya, E. V., Tsybulskaya, L. S., & Shendyukov, V. S. (2022). Thermal protective ability of electrochemically deposited nickel and nickel – boron coatings. Journal of the Belarusian State University. Chemistry, 2, 52-63. https://doi.org/10.33581/2520-257X-2022-2-52-63
Issue
No 2 (2022): Journal of the Belarusian State University. Chemistry
Section
Original Articles

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