Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1503126 | Scripta Materialia | 2006 | 5 Pages |
Abstract
Si3N4 dendritic crystals with coexisting α and β polymorphs have been synthesized by a rapid metathesis reaction between SiCl4 and slightly excessive NaN3 at an initial reaction temperature of 100 °C. The growth of the branches is perpendicular to the trunks. The formation of the dendrites can be ascribed to the vapor-solid mechanism. Reaction conditions, such as the reaction temperature and the ratio of reagents, are key factors for controlling the synthesis of the branched Si3N4 structures.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Yu-Jun Bai, Cheng-Guo Wang, Yong-Xin Qi, Bo Zhu, Yan-Xiang Wang, Yu-Xian Liu, Gui-Li Geng,