All-Russian Scientific Research Institute of Aviation Materials, Moscow, Russia:

S. Yu. Shorstov, 1st Category Technician at the Laboratory of Heat-Transfer Properties, Sshorstov7@gmail.com
M. G. Razmakhov, Engineer at the Laboratory of Heat-Transfer Properties
P. S. Marakhovskiy, Head of the Laboratory of Heat-Transfer Properties, Candidate of Technical Sciences

National University of Science and Technology MISiS, Moscow, Russia:

M. N. Sorokin, Lead Engineer at the Laboratory of Ultra-Hard Materials, sorokin@misis.ru

Diamond tooling is used to machine a broad range of materials. Due to their strength, diamond tools can be used to machine extremely hard alloys. At the same time, diamond tooling is also widely used to machine soft nonferrous alloys and polymers. This paper examines polycrystalline diamond (PCD) composites which are used in diamond tooling designed for various applications. A few types of diamond composites are known today, which are produced by different techniques. Such materials can be produced both by sintering diamond powders together with activating agents and by converting graphite into diamond using catalyst alloys. Production of such materials is always associated with the use of high pressures and temperatures. Depending on the production technique applied, the composition, properties and application of the resultant PCD composites can vary greatly. This paper looks at the infiltration method, i.e. when the binding melt infiltrates in pressed diamonds under high pressures and temperatures. Even though the obtained specimens have a lower strength than the ones produced by other methods, this technique proves to be optimum. Unlike it is with the other methods, the sintering operation in this one is not technically difficult (the applied pressure does not exceed 4 GPa), and PCD composites of bigger sizes can be produced. A study was conducted in the framework of this research to better understand the key physical and mechanical properties of PCD composites, which were produced by infiltration method using two binding materials (Ni – Si and Mn – Si alloys) and two diamond powders (the ASM grade of synthetic powder and the AM grade of natural powder). A comparative analysis of their properties was also carried out.
This research study was carried out as part of the research initiative 2.2. “Material Qualification and Studies” (“Strategic Areas in the Development of Materials and Processing Technology till 2030”).

1. Kablov E. N. Composites: Today and tomorrow. Metally Evrazii. 2015. No. 1. pp. 36–39.
2. Kablov E. N. Evolution of the national space materials science. Russian Foundation for Basic Research Journal. 2017. No. 3. pp. 97–105.
3. Pripisnov Ya. A., Grishina O. I. Advanced machining of composite materials: A review. Trudy VIAM: elektronnyi nauchno-tekhnicheskiy zhurnal. 2018. No. 10. pp. 53–61. DOI: 10.18577/2307-6046-2018-0-10-53-61.
4. Sorokin O. Yu., Grashchenkov D. V., Solntsev S. S., Evdokimov S. A. Ceramic composites with high oxidation resistance designed for advanced types of aircrafts: A review. Trudy VIAM: elektronnyi nauchno-tekhnicheskiy zhurnal. 2014. No. 6. DOI: 10.18577/2307-6046-2014-0-6-8-8.
5. Bugakov V. I., Elyutin A. V., Karavaev K. M., Laptev A. I. et al. A new type of nickel binding agent alloyed with titanium and chromium diborides designed for diamond stone-breaking tools. Izvestiya vuzov. Tsvetnaya metallurgiya. 1998. No. 5. pp. 61–68.
6. Nozhkina A. V., Laptev A. I., Ermolaev A. A. Effect of production parameters on the strength of carbonado polycrystalline diamonds. Sverkhtverdye Materialy. 2002. No. 5. pp. 36–39.
7. Elyutin A. V., Ermolaev A. A., Laptev A. I., Manukhin A. V. The effect of boron on the thermal stability of polycrystalline carbonado diamonds. Doklady Physics. 2002. Vol. 47, No. 9. pp. 651–653.
8. Elyutin A. V., Laptev A. I., Manukhin A. V., Sannikov D. S. et al. Synthesis of polycrystalline carbonado diamonds from pyrographite. Doklady Chemistry. 2001. Vol. 378, Iss. 4-6. pp. 160–164.
9. Laptev A. A. Understanding the structure and properties of the Ni–Si–Diamond system and producing composite materials on its basis: PhD dissertation. Moscow, 2011. 148 p.
10. Ekimov E. A., Gavriliuk A. G., Palsz B., Gierlotka S. et al. High-pressure, high-temperature synthesis of SiC – diamond nanocrystalline ceramics. Applied Physics Letters. 2000. Vol. 77, No. 7. pp. 954–956.
11. Chen L., Yang X., Su Z., Fang C. et al. Fabrication and performance of micro-diamond modified C/SiC composites via precursor impregnation and pyrolysis process. Ceramics International. 2018. No. 44. pp. 9601–9608.
12. Prokofiev V. A., Sorokin O. Yu., Vaganova M. L., Lebedeva Yu. A. Hightemperature material with a gradient structure produced by liquid-phase melt infiltration. Trudy VIAM: elektronnyi nauchno-tekhnicheskiy zhurnal. 2018. No. 11. pp. 45–53. DOI: 10.18577/2307-6046-2018-0-11-45-53.
13. Westraadt J. E., Dubrovinskaia N., Neethling J. H., Sigalas I. Thermally stable polycrystalline diamond sintered with calcium carbonate. Diamond and Related Materials. 2007. No. 16. pp. 1929–1935.
14. Shulzhenko A. A., Jaworska A., Sokolov A. N., Gargin V. G. et al. Novel Wear-Resistant Superhard Diamond Composite Polycrystalline Material. Journal of Superhard Materials. 2018. Vol. 40, No. 1. pp. 1–7.
15. Hu Qiang, Jia Xiao-Peng, Li Shang-Sheng, Su Tai-Chao et al. Research on mechanism of carbon transformation in the preparation of polycrystalline diamond by melt infiltration and growth method under high pressures. Acta Physica Sinica. 2016. Vol. 65, No. 6. DOI: 10.7498/aps.65.068101.
16. Chen S., Kou Z., Li Y., Wang Z. et al. Progress to electrical properties of diamond-SiC composites under high pressure and high temperature. Diamond and Related Materials. 2019. No. 94. pp. 203–208.
17. Zhitnyuk S. V. Effect of sintering additives on the properties of silicon carbide ceramics: A review. Trudy VIAM: elektronnyi nauchno-tekhnicheskiy zhurnal. 2019. No. 3. pp. 79–86. DOI: 10.18577/2307-6046-2019-0-3-79-86.
18. Jarrige I., Delaunay R., Jonnard P. Control of the interfacial reactivity in the Ni/Si system. Solid State Communications. 2005. No. 185. pp. 31–49.
19. Tokunaga T., Nishio K., Ohtani H., Hasebe M. Thermodynamic assessment of the Ni – Si system by incorporating ab initio energetic calculations into the CALPHAD approach. Computer Coupling of Diagrams and Thermochemistry. 2003. No. 27. pp. 161–168.
20. Loladze N. T., Tserodze M. P. Surface properties of molten metal and their effect on diamond formation in the Ме–С system. Sverkhtverdye materialy. 2010. No. 2. pp. 60–67.
21. Min-Kyu Paek, Jong-Jin Pak, Youn-Bae Kang. Phase equilibria and thermodynamics of Mn–C, Mn–Si, Si–C, binary systems and Mn–Si–C ternary system by critical evaluation, combined with experiment and thermodynamic
modeling. Computer Coupling of Phase Diagrams and Thermochemistry. 2014. No. 46. pp. 92–102.
22. Skury A. L. D., Bobrovnitchii G. S., Monteiro S. N. Effect of the graphite perfection on the HP-HT diamond synthesis in a Ni – Mn – C system. Diamond and Related Materials. 2004. No. 13. pp. 1725–1730.
23. Kablov E. N. Innovative developments of the All-Russian Scientific Research Institute of Aviation Materials in line with the initiative on “Strategic Areas in the Development of Materials and Processing Technology till 2030”. Aviatsionnye materialy i tekhnologii. 2015. No. 1. pp. 3–33. DOI: 10.18577/2071-9140-2015-0-1-3-33.
24. Shulzhenko A. A., Nozhkina A. V., Gargini V. G. et al. Synthetic and natural diamonds and polycrystalline composites made with them: Comparative analysis of physical and mechanical properties. Sverkhtverdye Materialy. 2008. No. 5. pp. 7–15.
25. GOST 9206–80. Diamond powders. Specifications. Introduced: 01.07.1981. Reprinted: August 1989. Moscow : Izdatelstvo standartov, 1989. 45 p.