Journal of Inorganic Materials

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Effect of Rare Earth Oxides on Densification and Mechanical Properties in β-SiAION Ceramics

CHEN Hong-Guang; SUN Wei-Ying   

  1. State Key Lab on High Pedermancc Ceramics and Superfine Micrstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1997-01-14 Revised:1997-03-05 Published:1998-02-20 Online:1998-02-20

Abstract: The effects of mixed rare earth oxides on densification, microstructure and mechanical properties Dy-β-SiAlON ceramics were investigated. It was found that the densities and mechanical properties were improved while Dy3+ was half replaced by Sm3+, but there was no such effect found while replaced by Y3+. It was also observed that the growth of β-SiAlON grains was restrained while Sm2O3 was added.

Key words: rare earth oxide, β-SiAlON, densification, microstructure, mechanical properities

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