The influence of elemental powder raw material on the formation of the porous frame of Ti3AlC2 MAX-phase when obtaining by the SHS method


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Abstract

The ternary carbide compound Ti3AlC2 belongs to the so-called MAX-phases – a new type of ceramic materials with unique properties. A simple energy-saving method of self-propagating high-temperature synthesis (SHS) based on combustion is one of the promising methods for the production of this MAX-phase. is The application of the SHS technology to produce a Ti3AlC2 MAX-phase porous frame with the homogeneous porous structure without such defects as large pores, laminations, and cracks is of great interest. The paper investigates the possibility of producing such a porous frame with the maximum content of the Ti3AlC2 MAX-phase using powders of Ti, Al, and C elements of various grades different in particle sizes and carbon forms (soot or graphite) as initial components. Porous frame samples were produced by the open-air burning of pressed briquettes of charge of the initial powders of the selected grades without applying external pressure. The authors studied the macro- and microstructure of the obtained samples, their density, and phase composition. The study shows that using the finest titanium and carbon powders leads to the excessively active combustion with gas evolution and the synthesis of the defective porous samples with the charge briquette shape distortion, large pores, laminations, and cracks. Besides the titanium carbide by-phase, the highest values for the MAX-phase amount in the SHS-product were obtained using the titanium powder of the largest-size fraction together with the graphite powder, rather than soot. The excess aluminum powder addition to the stoichiometric ratio to the initial charge leads to an increase in the MAX-phase amount in the SHS product, compensating for the loss of aluminum due to evaporation. An increase in the sample volume (scale factor) also leads to an increase in the MAX-phase amount in the SHS product due to the slower cooling of the product after the reaction.

About the authors

Denis M. Davydov

Samara State Technical University, Samara (Russia)

Author for correspondence.
Email: davidov@npcsamara.ru
ORCID iD: 0000-0001-5469-8588

postgraduate student of Chair of Metal Science, Powder Metallurgy, Nanomaterials

Russian Federation

Emil R. Umerov

Samara State Technical University, Samara (Russia)

Email: fake@neicon.ru
ORCID iD: 0000-0002-2050-6899

postgraduate student of Chair of Metal Science, Powder Metallurgy, Nanomaterials

Russian Federation

Evgeny I. Latukhin

Samara State Technical University, Samara (Russia)

Email: fake@neicon.ru

PhD (Engineering), assistant professor of Chair of Metal Science, Powder Metallurgy, Nanomaterials

Russian Federation

Aleksandr P. Amosov

Samara State Technical University, Samara (Russia)

Email: fake@neicon.ru
ORCID iD: 0000-0003-1994-5672

Doctor of Sciences (Physics and Mathematics), Professor, Head of Chair of Metal Science, Powder Metallurgy, Nanomaterials

Russian Federation

References

  1. Barsoum M.W. MAX Phases. Properties of Machinable Ternary Carbides and Nitrides. Weinheim, Wiley-VCH Publ., 2013. 437 p. doi: 10.1002/9783527654581.
  2. Tzenov N.V., Barsoum M.W. Synthesis and Characterization of Ti3AlC2. Journal of the American Ceramic Society, 2000, vol. 83, no. 4, pp. 825–832. doi: 10.1111/j.1151-2916.2000.tb01281.x.
  3. Wang X.H., Zhou Y.C. Solid-liquid reaction synthesis of layered machinable Ti3AlC2 ceramic. Journal of Materials Chemistry, 2002, vol. 12, no. 3, pp. 455–460. doi: 10.1039/b108685e.
  4. Zou Y., Sun Z., Tada S., Hashimoto H. Synthesis reactions for Ti3AlC2 through pulse discharge sintering Ti/Al4C3/TiC powder mixture. Scripta Materialia, 2006, vol. 55, no. 9, pp. 767–770. doi: 10.1016/j.scriptamat.2006.07.018.
  5. Yang C., Jin S.Z., Liang B.Y., Liu G.J., Duan L.F., Jia S.S. Synthesis of Ti3AlC2 by spark plasma sintering of mechanically milled 3Ti/xAl/2C powder mixtures. Journal of Alloys and Compounds, 2009, vol. 472, no. 1-2, pp. 79–83. doi: 10.1016/j.jallcom.2008.04.031.
  6. Gao L.N., Han T., Guo Z.L., Zhang X., Pan D., Zhou S.Y., Chen W.G., Li S.F. Preparation and performance of MAX phase Ti3AlC2 by in-situ reaction of Ti-Al-C system. Advanced Powder Technology, 2020, vol. 31, no. 8, pp. 3533–3539. doi: 10.1016/j.apt.2020.06.042.
  7. Akhlaghi M., Tayebifard S.A., Salahi E., Asl M.S. Spark plasma sintering of TiAl–Ti3AlC2 composite. Ceramics International, 2018, vol. 44, no. 17, pp. 21759–21764. doi: 10.1016/j.ceramint.2018.08.272.
  8. Akhlaghi M., Tayebifard S.A., Salahi E., Asl M.S., Schmidt G. Self-propagating high-temperature synthesis of Ti3AlC2 MAX phase from mechanically-activated Ti/Al/graphite powder mixture. Ceramics International, 2018, vol. 44, no. 8, pp. 9671–9678. doi: 10.1016/j.ceramint.2018.02.195.
  9. Kachenyuk M.N. Forming of Ti3SiC2 composite at mechanosynthesis. Voprosy materialovedeniya, 2008, no. 2, pp. 210–218.
  10. Pazniak A., Bazhin P., Shchetinin I., Kolesnikov E., Prokopets A., Shplis N., Stolin A., Kuznetsov D. Dense Ti3AlC2 based materials obtained by SHS-extrusion and compression methods. Ceramics International, 2019, vol. 45, no. 2, pp. 2020–2027. doi: 10.1016/j.ceramint.2018.10.101.
  11. Goc K., Prendota W., Chlubny L., Strączek T., Tokarz W., Borowiak P., Witulska K., Bućko M.M., Przewoźnik J., Lis J. Structure, morphology and electrical transport properties of the Ti3AlC2 materials. Ceramics International, 2018, vol. 44, no. 15, pp. 18322–18328. doi: 10.1016/j.ceramint.2018.07.045.
  12. Sun H.Y., Kong X., Yi Z.Z., Wang Q.B., Liu G.Y. The difference of synthesis mechanism between Ti3SiC2 and Ti3AlC2 prepared from Ti/M/C (M=Al or Si) elemental powders by SHS technique. Ceramics International, 2014, vol. 40, no. 8, pp. 12977–12981. doi: 10.1016/j.ceramint.2014.04.159.
  13. Amosov E.A., Kovalev D.Yu., Latukhin E.I., Konovalikhin S.V., Sychev A.E. Self-propagating high-temperature synthesis in the Ti-Al-C-B system. Vestnik Samarskogo gosudarstvennogo tekhnicheskogo universiteta. Seriya: Tekhnicheskie nauki, 2017, no. 2, pp. 161–171.
  14. Kovalev D.Yu., Averichev O.A., Luginina M.A., Bazhin P.M. Phase formation in Ti–Al–C system during SHS. Izvestiya vysshikh uchebnykh zavedeniy. Poroshkovaya metallurgiya i funktsionalnye pokrytiya, 2017, no. 4, pp. 11–18. doi: 10.17073/1997-308X-2017-4-11-18.
  15. Jin S.B., Shen P., Zou B.L., Jiang Q.C. Morphology evolution of TiCx grains during SHS in an Al-Ti-C system. Crystal Growth & Design, 2009, vol. 9, no. 2, pp. 646–649. doi: 10.1021/cg800527q.
  16. Fedotov A.F., Amosov A.P., Latukhin E.I., Novikov V.A. Fabrication of aluminum–ceramic skeleton composites based on the Ti2AlC MAX phase by SHS compaction. Izvestiya vuzov. Tsvetnaya metallurgiya, 2015, no. 6, pp. 53–62. doi: 10.17073/0021-3438-2015-6-53-62.
  17. Averichev O.A., Prokopets A.D., Stolin P.A. Structure formation of Ti / Ti–Al–C layered ceramic materials obtained by the method of free SHS-compression. Novye ogneupory, 2019, no. 4, pp. 57–60. doi: 10.17073/1683-4518-2019-4-57-60.
  18. Umerov E.R., Latukhin E.I., Markov Yu.M. Peculiarities of the SHS skeleton of Ti3AlC2 and its subsequent spontaneous infiltration by the al melt. Sovremennye materialy, tekhnika i tekhnologii, 2020, no. 5, pp. 106–114.
  19. Fedotov A.F., Amosov A.P., Latukhin E.I., Ermoshkin A.A., Davydov D.M. The influence of gasifying additives on phase composition of combustion products at self-propagating high-temperature synthesis of max-phases in Ti-C-Al system. Izvestiya Samarskogo nauchnogo tsentra Rossiyskoy akademii nauk, 2014, vol. 16, no. 6, pp. 50–55.
  20. Barabash S.V., Latukhin E.I., Umerov E.R. Influence of fractional composition of SHS charge on the structure of TIC. Sovremennye materialy, tekhnika i tekhnologii, 2020, no. 5, pp. 12–16.

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