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Structure and phase constitution of graphite-loaded reaction-bonded sic
https://doi.org/10.22349/1994-6716-2022-111-3-49-58
Abstract
The influence of porous SiC preforms densities for the siliconizing process on the structure and phase constitution of graphite-loaded reaction-bonded SiC (G-SiSiC) was studied. It was found that varying the densities of porous SiC preforms containing artificial graphite of similar grain size with the dimensions less than 25 mm (in height or diameter) can lead to the G-SiSiC samples with low free Si content (less 4 wt.%.). It was also shown that reaction sintering of G-SiSiC samples with the optimized densities during the siliconizing process results in the formation of a dense fine-grained SiC layer. Moreover, during the siliconizing process, a dense SiC gradient matrix is formed in which graphite and Si inclusions are uniformly dispersed in bulk.
Supporting agencies: The work was carried out within the framework of the complex scientific direction 14.1 “Structural ceramic composite materials” (“Strategic directions for the development of materials and technologies for their processing for the period up to 2030”) using the equipment of the Climatic Testing Center of Collective Use of the National Research Center “Kurchatov Institute” - VIAM. The authors are grateful to I.V. Osin, G.M. Prokopchenko, B.Yu. Kuznetsov, V.A. Prokofiev, and N.S. Moiseeva for their help in sample preparation, X-ray diffraction studies, and valuable comments.
About the Authors
O. Yu. Sorokin
All-Russian Scientific Research Institute of Aviation Materials NRC “Kurchatov Institute”
Russian Federation
Russian Federation
Cand Sc (Eng).
17 St Radio, 105005 Moscow.
I. O. Belyachenkov
All-Russian Scientific Research Institute of Aviation Materials NRC “Kurchatov Institute”
Russian Federation
Russian Federation
17 St Radio, 105005 Moscow.
A. S. Chainikova
All-Russian Scientific Research Institute of Aviation Materials NRC “Kurchatov Institute”
Russian Federation
Russian Federation
Cand Sc (Eng).
17 St Radio, 105005 Moscow.
S. V. Zhitnyuk
All-Russian Scientific Research Institute of Aviation Materials NRC “Kurchatov Institute”
Russian Federation
Russian Federation
Cand Sc (Eng).
17 St Radio, 105005 Moscow.
P. N. Medvedev
All-Russian Scientific Research Institute of Aviation Materials NRC “Kurchatov Institute”
Russian Federation
Russian Federation
Cand Sc (Phys-Math).
17 St Radio, 105005 Moscow.
References
1. Zhitniuk, S.V., Sorokin, O.Yu., Zhuravleva, P.L., Keramika na osnove karbida kremniya, poluchennaya spekaniem granulirovannogo poroshka [Ceramics based on silicon carbide obtained by sintering granulated powder], Trudy VIAM, 2020, No 2, Art. 06, URL: http://www.viam-works.ru (reference date 05/10/2022). DOI: 10.18577/2307-6046-2020-0-2-50-59.
2. Kablov, E.N., Kondrashov, S.V., Melnikov, A.A., Schur, P.A., Primenenie funktsy-onalnykh i adaptivnykh materialov, poluchennykh sposobom 3D-pechati (obzor) [Application of functional and adaptive materials obtained by 3D printing (review)], Trudy VIAM, 2022, No 2, Art. 03, URL: http://www.viam-works.ru (reference date 11/05/2022). DOI: 10.18577/2307-6046-2022-0-2-32-51.
3. Kablov, E.N., Startsev, V.O., Izmerenie i prognozirovanie temperatury obraztsov materialov pri exponirovanii v razlichnukh klimaticheskikh zonakh [Measurement and forecast of temperatures on materials exposed in various climatic zones], Aviatsionnye materialy i tekhnologii, 2020, No 4, P. 47-58. DOI: 10.18577/2071-9140-2020-0-4-47-58.
4. Gerasimov, V.S., Pautov, Yu.M., Snetkov, V.G., Fedorov, G.P., Nikiforov, S.A., Remizov, M.A., Modernizatsiya glavnykh tsyrkulyatsyonnykh nasosov agregatov dlya povysheniya bezopasnosti raboty energoblokov AES [Modernization of the main circulation pumps of the units to improve the safety of NPP power units], Proceedings of the 2nd international scientific technical conference “SafetyAssurance ofNPP with WWER”, 19-23 November 2001, АО “ОКВ Gidropress”, pp. 1-15.
5. Babushkin, S.V., Korobov, I.B., Afrikantov, G.G., Ilyakhinsky, I.A., Sozdanie neokhlazhdaemogo germetichnogo elektronasosa [Creation of an uncooled sealed electric pump], Proceedings of the 4th International scientific technical conference “Innovative designs and technologies of nuclear power (ISTC NIKIET-2016)”, Moscow, 27-30 September, 2016, V.1, pp. 245-255.
6. Hoskins, W.Ch., Silicon Carbide materials properties selection for mechanical seal faces: Undergraduate Honors Thesis, University of Tennessee, Knoxville, 2017.
7. Official website of Schunk company, Germany, URL: http://www.schunk-group.com (reference date 7/04/2022).
8. Sorokin, O.Yu., Bubnenkov, I.A., Koshelev, Yu.I., Orekhov, T.V., Razrabotka melkozernistogo silitsyrovannogo grafita s ulutshennymi svoistvami [Development of fine-grained siliconized graphite with improved properties], Khimiya i khimicheskaya tekhnologiya, 2012, V. 55, No 6, pp. 12-16.
9. Patent 2699641 RU. №2018123264: Sposob izgotovleniya izdeliy iz ultramelkozernistogo silitzyrovannogo grafita [Method of manufacture of fine-graned siliconized graphite], Rec. 26.06.2018; Publ. 06.09.2019, Bul. No 25.
10. Tyutin, S.S., Ilyakhinsky, I.A., Kamnev, M.A., Afrikantov, G.G., Sravnitelnaya otzenka opytnykh obraztzov vkladyshey podshipnikov dlya germetichnykh elektronasosov na stoikost v srede vysokikh parametrov [Comparison of experimental seals for bearings of hermetic electrical pumps in water with high parameters], Proceedings of the scientific technical conference “Nuclear technologies: from research to insertion”, Nizhny Novgorod, Alekseev NGTU, 17-18 October, 2019, pp. 49-50.
11. Rumyantsev, V.I., Genusova, T.N., Sapronov, R.L., Kozhevnikov, A.V., Analiz sovremennykh tendentsy i perspektivy razvitiya ispolzovaniya keramomatrichnykh kompozitsyonnykh materialov v antifriktsyonnykh parakh treniya [Analysis of modern tendencies and prospectives in CMCs usage for antifriction applications], Khimicheskaya tekhnika, 2010, No 11, pp. 38-44.
12. Kutyaeva, K.M., Cheblakova, E.G., Malinina, Yu.A., Shvetsov, A.A., Beilina, N.Yu., Provedenie analiticheskogo kontrolya silitsyrovannogo grafita SG-P, [Analitical control of siliconized graphite SG-P], Zavodskaya laboratoriya. Diagnostika materialov, 2021, V. 87, pp. 69-75.
13. Sorokin, O.Yu., Chainikova, A.S., Kuznetsov, B.Yu., Zhitnyuk, S.V., Ka-ratchevtsev, F.N., Issledovanie vliyaniya primesnogo sostava kremniya na defektnost obraztsov iz reaktsyonno-spechennogo karbida kremniya: Ch.1, [Studies of impurities in silicon on the defectiveness of SiSiC: Part 1], Zavodskaya laboratoriya. Diagnostika materialov, 2022, No 1, pp. 42-48.
14. Stankus, S.V., Khairulin, R.A., Tyagelsky, P.V., Termicheskie svoistva germaniya i kremniya v kondensirovannom sostoyanii [Thermal properties of germanium and silicon in condensed state], Teplofizika vysokikh temperatur, 1999, V. 37, No 4, pp. 559-564.
15. Kablov, E.N., Echin, A.B., Bondarenko, Yu.A., Istoriya razvitiya tekhnologii naprav-lennoi kristallizatsii i oborudovaniya dlya litya gazoturbinnykh dvigatelei [History of blades casting and equipment for aeroengines], Trudy VIAM, 2020, No 3, Art. 03, URL: http://www.viam-works.ru (reference date 10/05/2022). DOI: 10.18577/2307-6046-2020-0-3-3-12.
Review
For citations:
Sorokin O.Yu., Belyachenkov I.O., Chainikova A.S., Zhitnyuk S.V., Medvedev P.N. Structure and phase constitution of graphite-loaded reaction-bonded sic. Voprosy Materialovedeniya. 2022;(3(111)):49-58. (In Russ.) https://doi.org/10.22349/1994-6716-2022-111-3-49-58
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