Abstract
A pulsed plasma spray generator based on a new principle is developed for depositing ceramicmetal, ceramic, and metal coatings on solid substrates. Calculations of the plasma-generator parameters are presented. A hard alloy (W-Co) was deposited on a copper substrate to demonstrate the use of the plasma generator. A Rutherford backscattering (RBS) technique, x-ray diffraction microanalysis of phase composition, diffraction transmission electron microscopy (TEM), and hardness and adhesion measurements were used to examine the hard-alloy coating. It is shown that the coating consists of W-Co crystals with hexagonal and cubic lattices and contains ∼25-nm cobalt α-and β-phase crystallites, with W3Co3C particles revealed at the crystallite edges.
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Translated from Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 71, No. 7, 2001, pp. 111–118.
Original Russian Text Copyright © 2001 by Pogrebnyak, Il’yushenko, Kul’ment’eva, Tyurin, Kobzev, Ivanov, Ivani\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\), Kshnyakin.
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Pogrebnyak, A.D., Il’yushenko, M.V., Kul’ment’eva, O.P. et al. Structure and properties of a hard alloy deposited on a copper substrate by means of a pulsed plasma spray technology. Tech. Phys. 46, 897–904 (2001). https://doi.org/10.1134/1.1387554
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DOI: https://doi.org/10.1134/1.1387554