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

E. V. Nefedova; E. G. Grigoryev; D. A. Fokin; K. L. Smirnov

doi:10.3103/S1061386216040075

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

作者: Nefedova E.V.¹, Grigoryev E.G.¹, Fokin D.A.¹, Smirnov K.L.²
隶属关系:
1. National Research Nuclear University MEPhI
2. Institute of Structural Macrokinetics and Materials Science
期: 卷 25, 编号 4 (2016)
页面: 229-233
栏目: Article
URL: https://journals.rcsi.science/1061-3862/article/view/195756
DOI: https://doi.org/10.3103/S1061386216040075
ID: 195756

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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.