UDC 621.793.6:669.27.782
А.S. Podyman (1), advanced engineer
D.B. Shakhnin (1,2), senior research worker, c.ch.c.
D.-M. Ya. Bruskova (2), associate professor, c.ch.s.
V.V. Malyshev (1,2), professor, d.t.s.
A.I. Gab (1), associate professor, c.ch.s.
Dzh. Shuster (3), professor

INCREASE OF HEAT-RESISTANCE OF TUNGSTENBY SILICONIZING AND BORATING
(1) V.I. Vernadsky Institute of General and Inorganic Chemistry of the NASU, Kyiv, Ukraine,
(2) Open International University of Human Development «Ukraine», Kyiv, Ukraine,
(3) Viennese university, Vienna, Austria
For the increase of fire resistance of tungsten at high temperatures three types of coverage’s are investigated: boron, silicon as well as «boron-silicon». Kinetics of borating and siliconizing of tungsten in salt environments is studied; it is shown possibility of receipt of two-component coverage’s on tungsten by the successive causing of boron and sili-con. The got coverages are tested on heat resistance at a temperature 1373, 1473 and 1773 К.
Keywords: siliconising, boriding, tungsten, heat resistance, melts
INCREASE OF HEAT-RESISTANCE OF TUNGSTENBY SILICONIZING AND BORATING
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