DOI: https://doi.org/10.20535/kpi-sn.2019.4.180747

POSSIBILITY OF THE METHOD OF EXPLOSIVE ELECTRON-BEAM EVAPORATION-CONDENSATION IN VACUUM TO OBTAIN THE REFRACTORY AND COMPLEXLY DOPED COMPOUNDS FOR VARIOUS PURPOSES

Igor M. Hrechaniuk, Olena V. Khomenko, Gennadii A. Bagliuk

Abstract


Background. The method of explosive electron-beam evaporation-condensation of materials in vacuum opens up new possibilities for obtaining materials containing components, with a significant difference in the elasticity of the vapor, as well as complex alloyed compounds. This technology is promising for the production of various types of materials of controlled chemical composition in the form of powder products.

Objective. The purpose of the paper is to study the possibilities of the method of electron-beam explosive evaporation-condensation of materials in vacuum to obtain in granular and film form refractory and composite materials based on tungsten and copper, and complex alloyed materials based on titanium.

Methods. The method of explosive evaporation-condensation was used to obtain vapor-phase refractory, composite and complex alloyed materials based on the WC–W2C, Cu–W and Ti–Si–Zr–Nb systems. The experiments were carried out on the L-4 electron-beam installation, which was developed by the Scientific and Production Company “ELTEСHMASH” (Vinnytsia, Ukraine) in cooperation with the Frantsevich Institute for Problems of Materials Science, NAS of Ukraine. The changes in the chemical composition and morphology of obtained products depending on the deposition conditions in vacuum were studied.

Results. For the first time, refractory alloys and composite materials based on tungsten and copper and complex alloyed compounds based on titanium were obtained in granular form by explosive evaporation-condensation in vacuum. Using this technology makes it possible to control the chemical composition and morphology of the produced powder products, widely used in various fields of science and technology.

Conclusions. The technological conditions for the production of materials containing components with a significant difference in vapor pressure by the method of explosive evaporation-condensation in vacuum are determined. The method allows obtaining granular and film deposition products with refining of materials with respect to oxygen and some metal impurities.

Keywords


Electron-beam technology; Method of explosive evaporation-condensation in vacuum; Tungsten and copper based refractory and composite materials; Complex alloyed materials based on titanium

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