Publication detail

Effects of doping with Zr and Hf on the structure and properties of Mo-Si-B coatings obtained by magnetron sputtering of composite targets

Kiryukhantsev-Korneev, PV. Sytchenko, AD. Sviridova, TA. Sidorenko, DA. Andreev, NV. Klechkovskaya, VV. Polcak, J. Levashov, EA.

Original Title

Effects of doping with Zr and Hf on the structure and properties of Mo-Si-B coatings obtained by magnetron sputtering of composite targets

Type

journal article in Web of Science

Language

English

Original Abstract

The Mo-Si-B, Mo-Zr-Si-B, and Mo-Hf-Si-B coatings were deposited by magnetron sputtering of the MoSi2-MoB, MoSi2-MoB-ZrB2 and MoSi2-MoB-HfB2 targets. The composition and structure of coatings were investigated by glow discharge optical emission spectroscopy, scanning electron microscopy, X-ray diffraction, transmission electron microscopy, X-ray photoelectron and Raman spectroscopy. Mechanical properties were measured by nanoindentation method. The short-time oxidation resistance of coatings was evaluated at temperatures of 1100, 1300, and 1500 degrees C. The results showed that all coatings deposited onto alumina substrates were characterized by a dense columnar structure. Mo-Si-B coatings contained phases of hexagonal h-MoSi2 and amorphous a-MoB. With the addition of Zr and Hf, an increase in the lattice parameter and a decrease in the grain size of h-MoSi2 by 50 and 25%, respectively, were observed. The base Mo-Si-B coating had a high hardness of 30 GPa. The introduction of Zr and Hf led to a decrease in hardness by 24 and 20%, respectively. The Mo-Si-B coating was characterized by a minimal oxidation depth (<10 nm) at 1100 degrees C and 1300 degrees C, but a network of cracks that penetrated to the substrate was formed. Cracks on the surface of the Mo-Zr-Si-B and Mo-Hf-Si-B coatings were not observed; the formation of oxide layers, 0.3-2.0 mu m thick, was revealed. The oxidation resistance of coatings at temperature of 1500 degrees C increased in direction Mo-Si-B -> Mo-Hf-Si-B -> Mo-Zr-Si-B. The best results for the MoZr-Si-B coating were associated with a smaller grain size, higher thermal stability, and the formation of a protective layer based on SiO2 with the inclusion of ZrO2 crystallites.

Keywords

MoSi 2-based coatings; Ceramic SHS-targets; ZrB 2 and HfB 2 additives; Magnetron sputtering; Structure and phase composition; Mechanical properties; Oxidation resistance

Authors

Kiryukhantsev-Korneev, PV.; Sytchenko, AD.; Sviridova, TA.; Sidorenko, DA.; Andreev, NV.; Klechkovskaya, VV.; Polcak, J.; Levashov, EA.

Released

25. 7. 2022

Publisher

ELSEVIER SCIENCE SA

Location

LAUSANNE

ISBN

1879-3347

Periodical

SURFACE & COATINGS TECHNOLOGY

Year of study

442

Number

1

State

Swiss Confederation

Pages from

128141

Pages to

128153

Pages count

13

URL

https://www.sciencedirect.com/science/article/pii/S0257897222000627?via%3Dihub

BibTex

@article{BUT179222,
  author="Kiryukhantsev-Korneev, PV. and Sytchenko, AD. and Sviridova, TA. and Sidorenko, DA. and Andreev, NV. and Klechkovskaya, VV. and Polcak, J. and Levashov, EA.",
  title="Effects of doping with Zr and Hf on the structure and properties of Mo-Si-B coatings obtained by magnetron sputtering of composite targets",
  journal="SURFACE & COATINGS TECHNOLOGY",
  year="2022",
  volume="442",
  number="1",
  pages="13",
  doi="10.1016/j.surfcoat.2022.128141",
  issn="1879-3347",
  url="https://www.sciencedirect.com/science/article/pii/S0257897222000627?via%3Dihub"
}