4_2021_sen_8

Title of the article STUDY OF THE COMPOSITION INFLUENCE OF COMPOSITES BASED ON SINTERED IMPACT DIAMOND ON THEIR WEAR RESISTANCE DURING PROCESSING OF SILICON CARBIDE
Authors

SENYUT Vladimir T., Ph. D. in Eng., Leading Researcher of the Laboratory of Nanostructured and Superhard Materials, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

VITYAZ Petr A., Academician of the NAS of Belarus, D. Sc. in Eng., Prof., Chief Researcher of Department of Technologies of Mechanical Engineering and Metallurgy, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus; Head of the Apparatus of the NAS of Belarus, Presidium of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

ZHORNIK Viktor I., D. Sc. in Eng., Prof., Head of the Department of Technologies of Mechanical Engineering and Metallurgy — Head of the Laboratory of Nanostructured and Superhard Materials, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

VALKOVICH Igor V., Researcher of the Laboratory of Nanostructured and Superhard Materials, Joint Institute of Mechanical Engineering of the NAS of Belarus, Minsk, Republic of Belarus, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.

AFANASYEV Valentin P., D. Sc. in Geology and Mineralogy, Chief Researcher of the Laboratory of Lithospheric Mantle and Diamond Deposits, V.S. Sobolev Institute of Geology and Mineralogy of the Siberian Branch of the RAS, Novosibirsk, Russia, This email address is being protected from spambots. You need JavaScript enabled to view it.">This email address is being protected from spambots. You need JavaScript enabled to view it.
In the section MECHANICAL ENGINEERING MATERIALS AND TECHNOLOGIES
Year 2021
Issue 4(57)
Pages 63–70
Type of article RAR
Index UDK 539.2: 658.562
DOI https://doi.org/10.46864/1995-0470-2021-4-57-63-70
Abstract The article presents the results of comparative tests on the wear resistance of composite materials (CM) sintered at high pressures and temperatures based on impact diamond (diamond-lonsdaleite abrasive — DLA) when processing silicon carbide (SiC). To assess the CM performance based on impact diamonds, a method has been developed for determining the wear resistance, based on the determination of the CM specific productivity. It is shown that for CMs based on impact diamond, it is expedient to use SiC as a binder. For CMs based on impact diamond with an additive of 40 vol.% SiC, specific productivity when machining a silicon carbide wheel is 25–30 % higher than for compositions containing dense BN phases — wBN and cBN. The decrease in the specific productivity of CM “impact diamond — cBN” relative to CM “impact diamond — SiC” is determined by the higher dispersion of crystals of dense BN phases in comparison with SiC, which generally impairs the abrasive ability of the material. In this case, the addition of a coarse fraction of impact diamond 100/63 μm to the charge composition does not lead to an increase in the specific productivity of the abrasive element as compared to CM based on DLA with a particle size of less than 40 μm. Preliminary mechanical activation of the initial charge also reduces the CM abrasive ability due to the formation of a highly dispersed structure of the material.
Keywords impact diamonds, high pressure and temperature, sintering, silicon carbide, cubic boron nitride, wear resistance
  You can access full text version of the article.
Bibliography
  1. Vityaz P.A., Gritsuk V.D., Senyut V.T. Sintez i primenenie sverkhtverdykh materialov [Synthesis and application of superhard materials]. Minsk, Belorusskaya nauka Publ., 2005. 359 p. (in Russ.).
  2. Andrievskiy R.A. Nanomaterialy: kontseptsiya i sovremennye problemy [Nanomaterials: concept and current issues]. Rossiyskiy khimicheskiy zhurnal, 2002, vol. XLVI, no. 5, pp. 50–56 (in Russ.).
  3. Vityaz P.A., Zhornik V.I., Ilyushchenko A.F., Senyut V.T., Komarov A.I., Korzhenevskiy A.P., Ivakhnik A.V. Nanoalmazy detonatsionnogo sinteza: poluchenie i primenenie [Detonation synthesis nanodiamonds: production and application]. Minsk, Belorusskaya nauka Publ., 2013. 381 p. (in Russ.).
  4. Nozhkina A.V., Kostikov V.I., Laptev A.I., Vlasov I.I., Dudakov V.B. Nanoalmaznye kompozity [Nanodiamond composites]. Nanostrukturnye materialy: tekhnologii, svoystva, primenenie, 2017, pp. 108–121 (in Russ.).
  5. Afanasyev V.P., Pokhilenko N.P. Mineralogicheskie i tekhnologicheskie svoystva impaktnykh almazov popigayskoy astroblemy [Mineralogical and technological properties of impact diamonds of the Popigai astrobleme]. Materialy 10 Mezhdunarodnoy konferentsii “Uglerod: fundamentalnye problem nauki, materialovedenie, tekhnologiya” [Proc. 10th International Conference “Carbon: fundamental problems of science, materials science, technology”]. Moscow, Troitsk, 2016, p. 42 (in Russ.).
  6. Afanasyev V.P., Pokhilenko N.P. Popigayskie impaktnye almazy: novoe rossiyskoe syre dlya sushchestvuyushchikh i budushchikh tekhnologiy [Popigai impact diamonds: new Russian raw materials for existing and future technologies]. Innovatics and expert examination, 2013, iss. 1(10), pp. 8–15 (in Russ.).
  7. Vityaz P.A., Senyut V.T., Zhornik V.I., Valkovich I.V., Parnitsky A.M., Kovaleva S.A., Afanasyev V.P. Sintez nanostrukturnogo almaz-lonsdeylitnogo instrumentalnogo kompozita dlya abrazivnoy obrabotki [Synthesis of nanostructured diamond-lonsdaleite tool composite for abrasive treatment]. Aktualnye voprosy mashinovedeniya, 2019, iss. 8, pp. 352–356 (in Russ.).
  8. State Standard 30480-97. Obespechenie iznosostoikosti izdeliy. Metody ispytaniy. Obshchie trebovaniya [Ensuring the wear resistance of products. Test methods for wear resistance. General requirements]. Moscow, Standartov Publ., 1998. 12 p. (in Russ.).
  9. Vityaz P.A., et al. Poluchenie kompozitov na osnove almaz-lonsdeylitnogo abraziva dlya obrabotki iznosostoykikh materialov [Production of composites based on a new diamond-lonsdaleite abrasive for finishing wear-resistant materials]. Materialy 14 Mezhdunarodnoy nauchno-tekhnicheskoy konferentsii “Novye materialy i tekhnologii: poroshkovaya metallurgiya, kompozitsionnye materialy, zashchitnye pokrytiya, svarka [Proc. 14th International Scientific and Technical Conference “New materials and technologies: powder metallurgy, composite materials, protective coatings, welding”]. Minsk, 2020, pp. 338–343 (in Russ.).
  10. Senyut V.T. Spekanie kompozitsionnykh materialov instrumentalnogo naznacheniya na osnove impaktnykh almazov v usloviyakh vysokikh davleniy i temperatur [Sintering of composite materials for tool appointment, based on impact diamonds, under high pressure and temperatures]. Proceedings of the National Academy of Sciences of Belarus. Physical-technical series, 2021, vol. 66, no. 1, pp. 47–57 (in Russ.).
  11. Polkowski W., Sobczak N., Polkowska A., Nowak R., Kudyba A., Bruzda G., Giuranno D., Generosi A., Paci B., Trucchi D.M. Ultra-high temperature interaction between h-BN-based composite and molten silicon. Metallurgical and materials transactions A, 2019, vol. 50, iss. 2, pp. 997–1008.