Pressureless Sintering of Si2N2O

Journal of Inorganic Materials

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Pressureless Sintering of Si₂N₂O

XU Xin; HUANG Li-Ping; GE Qi-Ming; FU Xi-Ren

Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China

Received:2000-01-28 Revised:2000-03-04 Published:2001-01-20 Online:2001-01-20

Abstract

Abstract: Dense Si₂N₂O ceramics were pressurelessly signered from β-Si3N4 and SiO₂ powders with 4wt% MgAl₂O₄ additive. Microstructures of this material consisted of rod-like Si₂N₂O grains and a little amount of β-Si₃N₄. The effect of sintering temperatures on the microstructures was studied. Crack deflection profile suggested transgranular fracture of the material.

Key words: silicon oxynitride, pressurelessly sintering, microstructure, mechanical properties

CLC Number:

TQ174

XU Xin,HUANG Li-Ping,GE Qi-Ming,FU Xi-Ren. Pressureless Sintering of Si₂N₂O[J]. Journal of Inorganic Materials.

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Pressureless Sintering of Si₂N₂O

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