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

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

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

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

CLC Number:

TB323

CHEN Hong-Guang,SUN Wei-Ying. Effect of Rare Earth Oxides on Densification and Mechanical Properties in β-SiAION Ceramics[J]. Journal of Inorganic Materials.

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

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