Effect of reaction time in direct nitridation of Si powders

Author

Feng Wang ; Xiao-fang Qin ; Guo-qiang Jin ; Xiang-yun Guo

Author_Institution

Sch. of Chem. & Mater. Sci., Ludong Univ., Yantai, China

Volume

7

Issue

1

fYear

2012

fDate

1/1/2012 12:00:00 AM

Firstpage

49

Lastpage

51

Abstract

Si₃N₄ nanomaterials have been synthesised via direct nitridation of Si powders at 1300°C for different reaction time. The purified Si₃N₄ samples were characterised by Fourier transform infrared spectroscopy, X-ray diffraction and transmission electron microscopy. The results showed that the samples obtained for different reaction time are mixtures of α- and α-Si₃N₄ phases. The percentage of β-Si₃N₄ in the Si₃N₄ samples has obviously increased with the reaction time. The Si₃N₄ samples are mainly composed of nanobelts with different width.

Keywords

Fourier transform spectra; X-ray diffraction; infrared spectra; nanobelts; nanofabrication; nanostructured materials; nitridation; powders; silicon compounds; transmission electron microscopy; α-Si₃N₄ phases; β-Si₃N₄ phases; Fourier transform infrared spectroscopy; X-ray diffraction; direct nitridation; mixtures; nanobelts; nanomaterials; powders; reaction time effect; temperature 1300 degC; transmission electron microscopy;

fLanguage

English

Journal_Title

Micro & Nano Letters, IET

Publisher

iet

ISSN

1750-0443

Type

jour

DOI

10.1049/mnl.2011.0685

Filename

6140919