The ZrB2–CrB composites with a ceramic bond content of 80 wt.% and a relative density of 0.85 – 0.90 were obtained by the method of electrothermal explosion under pressure. It is shown that the mechanical activation of the source powder mixture decreases its heterogeneity and increases its reactivity.We also obtained a finely divided ceramic composite with homogeneous microstructure containing needle-like ZrB2 grains.
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References
A. G. Merzhanov, Combustion Processes and Synthesis of Materials [in Russian], Chernogolovka, Izd. ISMAN (1998).
A. G. Merzhanov and A. S. Mukas’yan, Solid-Flame Combustion [in Russian], Torus Press, Moscow (2007).
K. Brunelli, M. Dabala, R. Frattini, et al., “Electrochemical behavior of Cu–Zr and Cu–Ti glassy alloys,” Alloys Comp., 317, 595 – 602 (2001).
N. F. Shkodich, A. S. Rogachev, S. G. Vadchenko, et al., “Formation of amorphous structures and their crystallization in the Cu–Ti system by high-energy ball milling,” Russ. J. Non-Ferrous Metals, 59(5), 543 – 549 (2018).
A. V. Shcherbakov, V. Yu. Barinov, A. S. Shchukin, et al., “Synthesis of the TiB2 – 30ChrB composite by the method of electrothermal explosion under pressure,” Fundament. Issled., No. 11 – 2, 344 – 349 (2017).
L. Han, S.Wang, J. Zhu, et al., “Hardness, elastic, and electronic properties of chromium monoboride,” Appl. Phys. Lett., 106(22), 221902 (2015).
T. Tsuchida and S. Yamamoto, “Mechanical activation assisted self-propagation high-temperature synthesis of ZrC and ZrB2 in air from Zr/B/C powder mixtures,” J. Europ. Ceram. Soc., 24(1), 45 – 51 (2004).
A. L. Chamberlain,W. G. Fahrenholtz, and G. E. Hilmas, “Reactive hot pressing of zirconium diboride,” J. Europ. Ceram. Soc., 29(16), 3401 – 3408 (2009).
A. L. Chamberlain, W. G. Fahrenholtz, and G. E. Hilmas, “Pressureless sintering of zirconium diboride,” J. Amer. Ceram. Soc., 89(2), 450 – 456 (2006).
W. G. Fahrenholtz, G. E. Hilmas, I. G. Talmy, et al., “Refractory diborides of zirconium and hafnium,” J. Amer. Ceram. Soc., 90(5), 1347 – 1364 (2007).
S. Q. Guo, T. Nishimuna, Y. Kagawa, et al., “Spark plasma sintering of zirconium diborides,” J. Amer. Ceram. Soc., 91(9), 2848 – 2855 (2008).
A. L. Chamberlain,W. G. Fahrenholtz, and G. E. Hilmas, “Reactive hot pressing of zirconium diboride,” J. Europ. Ceram. Soc., 29(16), 3401 – 3408 (2009)
L. Silvestroni and D. Sciti, “Densification of ZrB2 – TaSi2 and HfB2 – TaSi2 ultra-high-temperature ceramic composites,” J. Amer. Ceram. Soc., 94(6), 1920 – 1930 (2011).
The present work was financially supported by the Russian Foundation for Fundamental Research (Grant 17-58-04081 Bel mol a) and performed with the use of equipment of the Distributed Center of Collective Use (RTsKP) ISMAN.
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Translated from Novye Ogneupory, No. 4, April, pp. 61 – 64, 2019
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Shcherbakov, A.V., Shcherbakov, V.A., Barinov, V.Y. et al. Influence of the Mechanical Activation of Reaction Mixture on the Formation of Microstructure of ZrB2–CrB Composites Obtained by Electrothermal Explosions under Pressure. Refract Ind Ceram 60, 223–226 (2019). https://doi.org/10.1007/s11148-019-00340-y
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DOI: https://doi.org/10.1007/s11148-019-00340-y