Study of Possibility of Obtaining Nanopowder Composition of "Aluminum Nitride – Boron Nitride" by Azide SHS Technology

Abstract:

Processes and products of combustion of systems of "sodium azide – aluminum and boron halides " are studied. Halide salts AlF₃, Na₃AlF₆, KBF₄ and NH₄BF₄ are used as precursors of Al and B elements. The measured combustion temperature is in the range from 900 to 1800°C. It is established that the end product of combustion synthesis consists of several phases, not only the target phases (AlN and BN), but also the by-products (Na₃AlF₆, К₂NaAlF₆, NaF, KF), part of which is removed by water washing. The composite powder of AlN-BN is formed only in the case of AlF₃ as precursor of Al; in doing so, it is formed with side, impurity product К₂NaAlF₆ or Na₃AlF₆. In the case of precursor Na₃AlF₆, the washed product of SHS may only be a by-product К₂NaAlF₆ or Na₃AlF₆ or along with the by-product, it may contain AlN or BN, but not their composition. That is explained by different combustion temperature.The structure formation of the composite powder is investigated. The obtained agglomerated nitride nano- and micropowders have an irregular and predominantly acicular shape with an average particle size of 50-170 nm in the agglomerates.

• Periodical: Key Engineering Materials (Volume 684)
• Pages: 379-386
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.684.379
• Online since: February 2016
• Authors: Ljudmila Shiganova, George Bichurov, Irina Kerson, Vladislav A. Novikov, Aleksandr P. Amosov
• Keywords: AlN, BN, Composite, Nanopowders, Nitrides, Self-Propagating High-Temperature Synthesis (SHS), Sodium Azide

References

[1] R. Yu. Kuftyrev, A. V. Belyakov, I. G. Kuznetsova, Preparation methods for composite ceramic materials based on AlN–BN (Review), Refractories and Industrial Ceramics, 54 (2) (2013) 141-148.

DOI: 10.1007/s11148-013-9565-z

[2] T. Kusunose, M. J. Cho, T. Sekino, K. Niihara, Hot-pressed AlN/BN composite with excellent mechanical and thermal properties, Materials Science Forum, 544-545 (2007) 761-764.

DOI: 10.4028/www.scientific.net/msf.544-545.761

[3] H. -Y. Jin, W. Wang, J. -Q. Gao, G. -J. Qiao, Z. -h. Jin, Study of machinable AlN/BN ceramic composites, Materials Letters, 60 (2) (2006) 190–193.

DOI: 10.1016/j.matlet.2005.08.029

[4] W.S. Cho, Z.H. Piao, K.J. Lee, Y.C. Yoo, J.H. Lee, M.W. Cho, Y.C. Hong, K. Park, W.S. Hwang, Microstructure and mechanical properties of AlN–hBN based machinable ceramics prepared by pressureless sintering, Journal of the European Ceramic Society, 27 (2–3) (2007).

DOI: 10.1016/j.jeurceramsoc.2006.05.044

[5] G. -J. Zhang, J. -F. Yang, M. Ando, T. Ohji, Reaction synthesis of aluminum nitride - boron nitride composites based on the nitridation of aluminum boride, Journal of American Ceramic Society, 85 (12) (2002) 2938-2944.

DOI: 10.1111/j.1151-2916.2002.tb00559.x

[6] Y. -L. Li, J. Zhang, J. -X. Zhang, Fabrication and thermal conductivity of AlN/BN ceramics by spark plasma sintering, Ceramics International, 35 (6) (2009) 2219–2224.

DOI: 10.1016/j.ceramint.2008.12.003

[7] T. Kusunose, T. Sekino, Y. Ando, Contact damage of machinable aluminum nitride / boron nitride nanocomposites, Journal of Ceramic Society of Japan, 116 (6) (2008) 762-766.

DOI: 10.2109/jcersj2.116.762

[8] C. Jihong, Z. Zeng, C. Wu, Boron nitride - aluminum nitride ceramic composites fabricated by transient plastic phase processing, Journal of American Ceramic Society, 84 (4) (2001) 887-889.

DOI: 10.1111/j.1151-2916.2001.tb00761.x

[9] D. Dou, D.R. Ketchum, E.J.M. Hamilton, P.A. Florian, K.E. Vermillion, P.J. Grandinetti, S.G. Shore, Reactions of aluminum hydride derivatives with ammonia-borane: a new approach toward AlN/BN materials, Chemistry of Materials, 8 (1996) 2839-2842.

DOI: 10.1021/cm960355a

[10] T. Kusunose, Fabricaton of boron nitride dispersed nanocomposites by chemical processing and their mechanical properties, Journal of Ceramic Society of Japan, 114 (2) (2006) 167-173.

DOI: 10.2109/jcersj.114.167

[11] T.D. Xiao, K.E. Gonsalves, P.R. Strutt, Synthesis of aluminum nitride / boron nitride composite materials, Journal of American Ceramic Society, 76 (4) (1993) 987-992.

DOI: 10.1111/j.1151-2916.1993.tb05323.x

[12] G.N. Makarenko, L.A. Krushinskaya, V.B. Fedorus, T.V. Dubovik, A.V. Kotko, M.G. Andreeva, I.V. Uvarova, Production and properties of AlN-BN composite, Powder Metallurgy and Metal Ceramics, 49 (11-12) (2011) 670-674.

DOI: 10.1007/s11106-011-9286-0

[13] M.A. Hobosyan, H. L. Khachatryan, S. L. Kharatyan, J.A. Puszynski, Combustion synthesis of ultra fine BN/AlN and BN/B4C composite powders: role of gasifying compounds, International Journal of Self-Propagating High-Temperature Synthesis, 15 (2) (2006).

DOI: 10.1002/9781118407820.ch1

[14] N.V. Kosmacheva, Self-propagating high-temperature synthesis of compositions on the base of nitrides of silicon, aluminum and boron with application of sodium azide and halides: author's abstract of PhD thesis, Samara State Technical University, Samara, 2004. (In Russian).

[15] L.A. Shiganova, G.V. Bichurov, A.P. Amosov, Yu.V. Titova, A.A. Ermoshkin, P.G. Bichurova, The self-propagating high-temperature synthesis of a nanostructured titanium nitride powder with the use of sodium azide and haloid titanium containing salt. Russian Journal of Non-Ferrous Metals, 52 (1), (2011).

DOI: 10.3103/s1067821211010238

[16] G.V. Bichurov, L.A. Shiganova, Y.V. Titova, Azide technology of self-propagating high-temperature synthesis of micro - and nanopowders of nitride compositions: Monograph. Mashinostroenie, Moscow (2012). ISBN: 978-5-94275-658-1. (In Russian).

[17] I. Kerson, L. Shiganova, Obtaining powder of nanostructured nitride composition TiN-BN by method of self-propagating high-temperature synthesis from the azide systems KBF4-NaN3-Na2TiF6" and "NH4BF4-NaN3-Na2TiF6, Applied Mechanics and Materials, 698 (2015).

DOI: 10.18411/lj2016-7-2-08

[18] T. Ya. Kosolapova, T.V. Andreeva, T.S. Bartnitskaya, G.G. Gnesin, Nonmetallic refractory compounds, Metallurgy, Moscow, 1985. (In Russian).