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Spark plasma sintering of β-SiAlON–BN composites from combustion-synthesized powders

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Abstract

Investigated was the spark plasma sintering (SPS) of β-SiAlON/0–30 wt % BN ceramic composites. The raw materials (β-Si5AlON7 and BN powders) were prepared by infiltration-mediated combustion synthesis (CS). Experimentally established were the following process parameters for SPS of composites with high relative density (>95%) and flexural strength of 250–300 MPa: (a) heating rate 50 deg/min, (b) maximum temperature 1650–1750°C, (c) and holding time 5 min.

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Authors and Affiliations

  1. National Research Nuclear University MEPhI, Moscow, 115409, Russia

    E. V. Nefedova, E. G. Grigoryev & D. A. Fokin

  2. Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka, Moscow, 142432, Russia

    K. L. Smirnov

Authors
  1. E. V. Nefedova
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  2. E. G. Grigoryev
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  3. D. A. Fokin
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  4. K. L. Smirnov
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Correspondence to K. L. Smirnov.

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Nefedova, E.V., Grigoryev, E.G., Fokin, D.A. et al. Spark plasma sintering of β-SiAlON–BN composites from combustion-synthesized powders. Int. J Self-Propag. High-Temp. Synth. 25, 229–233 (2016). https://doi.org/10.3103/S1061386216040075

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  • DOI: https://doi.org/10.3103/S1061386216040075

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