journal article·2020-01

Synthesis of Si 3 N 4 whiskers by rapid nitridation of silicon droplets

Jinguang Yang, Ping Wu, Yanping Zhang, Dan Yan, Shiping Zhang, Ya‐nan Li, Li Wang

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Abstract

Abstract Belt‐like β ‐Si 3 N whiskers were successfully synthesized by nitriding of liquid silicon without catalysts at 1500°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 β ‐Si 3 N 4 whisker was controlled by vapor‐liquid‐solid mechanism. The synthesis of silicon nitride whiskers can be effectively improved by nitriding liquid phase silicon.
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Research context

OpenAlex topics: Advanced ceramic materials synthesis · Semiconductor materials and devices · MXene and MAX Phase Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Beijing Key Laboratory for Magneto‐Photoelectrical Composite and Interface Science, School of Mathematics and Physics University of Science and Technology Beijing Beijing China

Central Research Institute of Building and Construction Co. Ltd, China Metallurgical Group Corporation Beijing China

School of Energy and Environmental Engineering University of Science and Technology Beijing Beijing China

Beijing Engineering Research Centre of Energy Saving and Environmental Protection Beijing China

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