60-63

STUDYING OF POLYCRYSTALS STRUCTURE BASED ON DIAMOND MICROPOWDERS AFTER MODIFYING BY CARBIDE-FORMING ELEMENTS

Results of thermobaric processing of diamond micropowders after their modifying by silicon, titan and tungsten are presented. The composite diamond micropowders such as di-amond – silicon, diamond – titan and diamond – tungsten are received after the preliminary annealing in the protective atmosphere. As a result of agglomeration of the modified dia-mond micropowders under the conditions of high pressures and temperatures the carbides formation of the refractory compounds promoting sintering of diamond grains takes place.

Key words: diamond micropowders, polycrystalline super hard material, modification, high pres-sure and temperatures, sintering, carbides

REFERENCES
1. Shul’zhenko A.A., Klimenko S.A. Instrumentalnyi svet. 1999. N 4. P. 14 – 16 (in Russian).
2. Instrument from super hard materials. / Ed. N.V. Novikov. M.: Mashinostroenie. 2005. 555 p. (in Russian).
3. Shul’zhenko A.A., Voronin G.A., Osipov A.S. RF Patent № 1729086. (in Russian).

2016, Т. 59, № 8, Стр. 60-63