Mechanism of the formation of β-sialon by self-propagating high-temperature synthesis

被引：18
|
作者：
Wu, YW [1 ]
Zhuang, HR
Wu, FY
Dollimore, D
Zhang, BL
Chen, S
Li, WL
机构：
[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
[2] Univ Toledo, Dept Chem, Toledo, OH 43606 USA
来源：
JOURNAL OF MATERIALS RESEARCH | 1998年 / 13卷 / 01期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1557/JMR.1998.0022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
beta-Sialon has been prepared by SHS (Self-propagating High-temperature Synthesis) with Si, Al, Al2O3, anti beta-Si3N4 under high nitrogen pressure. Rod-like crystals of beta-Sialon with an aspect ratio of 4-15 and whiskers with various aspect ratios were obtained in the process. Considering the morphologies of the products, it is concluded that VLS (vapor-liquid-solid) is the predominant mechanism of the formation of rod-like crystals and whiskers.
引用
收藏
页码：166 / 172
页数：7
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