Synthesis of Si3N4 whiskers by rapid nitridation of silicon droplets

被引：9

作者：

Yang, Jinguang ^{[1
]}

Wu, Ping ^{[1
]}

Zhang, Yanping ^{[2
]}

Yan, Dan ^{[1
]}

Zhang, Shiping ^{[1
]}

Li, Ya-nan ^{[1
]}

Wang, Li ^{[3
,4
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Math & Phys, Beijing Key Lab Magnetophotoelect Composite & Int, Beijing 100083, Peoples R China

[2] Cent Res Inst Bldg & Construct Co Ltd, Met Grp Corp, Beijing, Peoples R China

[3] Univ Sci & Technol Beijing, Sch Energy & Environm Engn, Beijing, Peoples R China

[4] Beijing Engn Res Ctr Energy Saving & Environm Pro, Beijing, Peoples R China

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2020年 / 17卷 / 01期

基金：

国家重点研发计划;

关键词：

morphology; nitridation; silicon nitride; MECHANISM; METALS;

D O I：

10.1111/ijac.13348

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Belt-like beta-Si3N whiskers were successfully synthesized by nitriding of liquid silicon without catalysts at 1500 degrees C by using micron-sized silicon powders within 10 minutes. Silicon droplets formed by the melting of silicon particles greatly facilitates the diffusion of nitrogen. Several whiskers cling together to form a whisker-cluster. The whisker-clustermorphology results from nitriding of separate silicon droplets. The growth of the belt-like beta-Si3N4 whisker was controlled by vapor-liquid-solid mechanism. The synthesis of silicon nitride whiskers can be effectively improved by nitriding liquid phase silicon.

引用

页码：296 / 303

页数：8

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