Microstructural Characteristic of α -AlN-polytypoids Multi-phase Sialon

Journal of Inorganic Materials

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Microstructural Characteristic of α -AlN-polytypoids Multi-phase Sialon

CHEN Wei-Wu; SUN Wei-Ying; YAN Dong-Sheng

State key Lab of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China

Received:1998-11-25 Revised:1999-02-10 Published:1999-12-20 Online:1999-12-20

Abstract

Abstract: The densification behavior, reaction sequence and microstructural development of (Y+Sm) α -AlN-polytypoids multi-phase Sialon were studied by XRD, SEM and EDS. The results show that the AlN-polytypoids form earlier than α-Sialon and segregate together. The α-Sialon develops into elongated grains in this multi-phase Sialon. The mechanism of elongated α-Sialondeveloped was discussed.

Key words: α-Sialon, AlN-polytypoids, multi-phase ceramics, microstructures

CLC Number:

TB323

CHEN Wei-Wu,SUN Wei-Ying,YAN Dong-Sheng. Microstructural Characteristic of α -AlN-polytypoids Multi-phase Sialon[J]. Journal of Inorganic Materials.

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Microstructural Characteristic of α -AlN-polytypoids Multi-phase Sialon

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