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Densification kinetics ofα-AlB12 and Al3B48C2 powders during hot pressing

  • Theory, Fabrication Technology, and Properties of Powders and Fibers
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Abstract

A study was made of the densification by hot pressing of ultrafine (< 2 μm α-AlB12 and Al3B48C2) powders synthesized from the elements, and of the same powders ground in a planetary mill. The optimum regimes for obtaining almost pore free specimens were determined, as well as the effects of iron and particle size on the kinetics of densification.

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References

  1. V. I. Matkovich, J. Economy, and R. F. Giese, “Presence of carbon in aluminum borides,” J. Amer. Chem. Soc.,86, No. 12, 2337–2340 (1964).

    Google Scholar 

  2. Z. Inoue, H. Tanaka, and Y. Inomata, “Synthesis and x-ray crystallography of aluminum boron carbide Al8B4C7, ” J. Mater. Sci., No. 12, 3036–3040 (1980).

    Google Scholar 

  3. G. V. Samsonov, V. A. Neronov, and L. K. Lamikhov, “The constitution, structure, and some properties of phases in the Al-system,” J. Less Common Metals,67, No. 2, 291–296 (1979).

    Google Scholar 

  4. J. A. Kohn, G. Katz, and A. A. Giardini, “AlB10 a new phase and a critique on the aluminum borides,” Ibid.,111, No. 1, 53–62 (1958).

    Google Scholar 

  5. P. Dorner, Konstituzion Untersuchungen an Hochtemperaturkeramiken des Systems B-Al-C-Si-N-O mit Hilfe Thermodynamisher Berehnungen, Diss Dokt. Naturwiss., Stuttgart (1982).

  6. V. A. Neronvov and L. K. Lamikhov, “On the question of preparing AlB12 by aluminothermic reduction of borax,” in: Metallothermic Methods for the Preparation of Compounds and Alloys [in Russian], Nauka, Novosibirsk (1972), pp. 24–30.

    Google Scholar 

  7. V. T. Serebryanskii, V. A. Épel'baum, and G. S. Zhdanov, “On the phase diagram of the aluminum-boron system,” Dokl. Akad. Nauk. SSSR,141, No. 4, 884–886 (1961).

    Google Scholar 

  8. O. A. Galikova, V. M. Orlov, T. V. Khomidov, et al., “Preparation of AlB12 monocrystals,” Neorg. Mater.,13, No. 6, 1097–1098 (1977).

    Google Scholar 

  9. T. Atoda, I. Higashi, and M. Kubayashi, “Processes of formation and decomposition of aluminum borides,” Sci. Papers I. P. C. R.,61, No. 3, 92–99 (1967).

    Google Scholar 

  10. M. S. Koval'chenko, D. Kh. Bronshtein, É. S. Simkin, and N. V. Tsypin, “Kinetics of densification in hot pressing of composite materials based on hard alloys,” Poroshk. Metall., No. 6, 20–24 (1986).

  11. M. Bouchacourt and E. Thevenot, “The properties and structure of the boron carbide phase,” J. Less Common Metals,82, 227–235 (1981).

    Google Scholar 

  12. I. T. Ostapenko, V. V. Slezov, R. V. Taranov, et al., “Densification of boron carbide powder during hot pressing,” Poroshk. Metall., No. 5, 38–43 (1979).

  13. M. Beanky and R. Anger, “Mechanism of hot pressing of boron carbide powders,” Sci. Ceram. Proc. 10th Conf., Wieden (1980), pp. 279–286.

  14. A. N. Nikalenko and M. S. Koval'chenko, “Analysis of the random packing of identical particles,” Poroshk. Metall., No. 1, 30–32 (1986).

  15. H. L. Yakel, “Recent developments in the structural crystallography of boron and the higher borides,” in: Boron Rich Solids, Int. Conf. Albuquerque, Tuly (1985), pp. 97–113.

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Institute for the Problems of Materials Science, Ukrainian Academy of Sciences, Kiev. T. G. Shevchenko University of Kiev. Translated from Poroshkovaya Metallurgiya, Nos. 1/2(383), pp. 28–35, January–February, 1996. Original article submitted January 19, 1990.

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Kharlamov, A.I., Kirillova, N.V. & Loichenko, S.V. Densification kinetics ofα-AlB12 and Al3B48C2 powders during hot pressing. Powder Metall Met Ceram 35, 25–31 (1996). https://doi.org/10.1007/BF01512657

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