Journal of Inorganic Materials

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Y-α/β-Sialon Powders by Self-propagating High Temperature Synthesis

SHI Guo-Ying; WU Feng-Ying; ZHUANG Han-Rui   

  1. Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1997-10-05 Revised:1997-11-07 Published:1998-10-20 Online:1998-10-20

Abstract: Polyphase Y-α/β-Sialon powders were prepared by SHS method, with St, Al, Y2O3 and Si3N4as raw materials under high nitrogen pressure. The effects of nitrogen pressure and the amount ofdiluent on α , β phase compositions and the amount of free Si were studied in detail.

Key words: self-propagating high temperature synthesis, Y-α/β-Sialon, nitrogen pressure, diluent

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