Structure and properties of a hard alloy deposited on a copper substrate by means of a pulsed plasma spray technology

A. D. Pogrebnyak, M. V. Il'yushenko, O. P. Kul'ment'eva, Yu N. Tyurin, A. P. Kobzev, Yu F. Ivanov, V. S. Ivaniǐ, V. S. Kshnyakin

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

A pulsed plasma spray generator based on a new principle is developed for depositing ceramic-metal, 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.

Original languageEnglish
Pages (from-to)897-904
Number of pages8
JournalTechnical Physics
Volume46
Issue number7
DOIs
Publication statusPublished - 1 Jul 2001

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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