Preparation and growth mechanism of β-Si3N4 rod-like crystals by combustion synthesis

被引：24

作者：

Chen, DY ^{[1
]}

Zhang, BL ^{[1
]}

Zhuang, HR ^{[1
]}

Li, WL ^{[1
]}

Xu, SY ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China

来源：

MATERIALS LETTERS | 2002年 / 57卷 / 02期

关键词：

combustion synthesis; beta-Si3N4; rod-like crystal; growth mechanism;

D O I：

10.1016/S0167-577X(02)00799-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents the preparation of beta-Si3N4 rod-like crystals that have an average aspect ratio of similar to10 by combustion synthesis of the mixture of Si, alpha-Si3N4 and Y2O3 under 5 MPa nitrogen pressure. By using a quenching device, the growth morphology Of beta-Si3N4 rod-like crystals was observed and it is concluded that the growth mechanisms result from the synergy of VLS (vapor-liquid-solid) and VS (vapor-solid). (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：399 / 402

页数：4

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