Effect of precursor mass on product phase composition in plasma dynamic synthesis of tungsten carbide

Abstract Tungsten carbide and its different crystalline phases are widely used for production of metalworking tools due to their excellent physical and mechanical characteristics. However, there is still a problem of synthesizing the cubic modification of tungsten carbide. This paper demonstrates the results on studying the influence of the energy parameters of the plasma dynamic synthesis process on the dispersed products of the W–C system. It was revealed that the initial energy parameters directly influence the phase composition of synthesized products. There were found the optimal conditions for synthesizing the dispersed products from the standpoint of the high output of cubic tungsten carbide phase (more than 85 wt.%). According to transmission electron microscopy data, all the products are characterized by the presence of particles with a core-shell structure embedded into the amorphous carbon matrix.

Download Full-text

Plasma dynamic synthesis of iron oxides in a discharge plasma jet with possibility to control final phase composition

Journal of Physics Conference Series ◽

10.1088/1742-6596/830/1/012116 ◽

2017 ◽

Vol 830 ◽

pp. 012116

Author(s):

I Shanenkov ◽

A Sivkov ◽

A Ivashutenko ◽

M Gukov

Keyword(s):

Phase Composition ◽

Iron Oxides ◽

Discharge Plasma ◽

Plasma Jet ◽

Final Phase ◽

Plasma Dynamic ◽

Dynamic Synthesis

Download Full-text

Plasma dynamic synthesis of highly defective fine titanium dioxide with tunable phase composition

Ceramics International ◽

10.1016/j.ceramint.2021.12.303 ◽

2021 ◽

Author(s):

Aleksandr Sivkov ◽

Yuliya Vympina ◽

Alexander Ivashutenko ◽

Iliyas Rakhmatullin ◽

Yuliya Shanenkova ◽

...

Keyword(s):

Titanium Dioxide ◽

Phase Composition ◽

Plasma Dynamic ◽

Dynamic Synthesis

Download Full-text

Plasma Dynamic Synthesis of Cubic Tungsten Carbide and the Influence of the Gas Atmosphere Parameters

Journal of Surface Investigation X-ray Synchrotron and Neutron Techniques ◽

10.1134/s1027451021020324 ◽

2021 ◽

Vol 15 (2) ◽

pp. 361-370

Author(s):

A. A. Sivkov ◽

I. I. Shanenkov ◽

Yu. L. Shanenkova ◽

D. S. Nikitin ◽

I. A. Rakhmatullin ◽

...

Keyword(s):

Tungsten Carbide ◽

Plasma Dynamic ◽

Dynamic Synthesis ◽

Gas Atmosphere

Download Full-text

Study of the phase composition of fine-grained tungsten carbide based ceramic materials by x-ray phase analysis

Industrial laboratory Diagnostics of materials ◽

10.26896/1028-6861-2019-85-8-37-42 ◽

2019 ◽

Vol 85 (8) ◽

pp. 37-42 ◽

Cited By ~ 1

Author(s):

P. V. Andreev ◽

K. E. Smetanina ◽

E. A. Lantsev

Keyword(s):

Phase Composition ◽

Tungsten Carbide ◽

Phase Analysis ◽

Ceramic Materials ◽

X Ray ◽

Fine Grained

Download Full-text

INFLUENCE OF COPPER SUBLAYER ON NUCLEATION OF DIAMOND CRYSTALS ON SURFACE OF TUNGSTEN CARBIDE

IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA ◽

10.6060/tcct.20165908.31y ◽

2018 ◽

Vol 59 (8) ◽

pp. 85 ◽

Cited By ~ 2

Author(s):

Dmitriy S. Vokhmyanin

Keyword(s):

Raman Spectroscopy ◽

Phase Composition ◽

Tungsten Carbide ◽

Layer Structure ◽

Chemical Deposition ◽

Diamond Crystals ◽

Negative Temperatures

The buffer copper sublayer on the surface of tungsten carbide was obtained with the chemical deposition from aqeous solutions. With the using the methods of SEM, AFM, XRF it was established that at temperature of 23 °C the layer structure is porous that do not observed at negative temperatures. The sublayer structure influences the character of nucleation of diamond crystals and their form. The phase composition was determined with Raman spectroscopy. The spectrum shows the lines of diamond (1334 cm-1), sp2 of carbon and trans-polyacetylene (1170 сm-1).

Download Full-text