Abstract
Large-scale vapor–solid synthesis of ultralong silicon nitride (Si3N4) nanowires was achieved by using simple thermal evaporation of mixture powders of active carbon and monoxide silicon. The products were characterized by X-ray diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and transmission electron microscopy. The results suggest that the silicon nitride nanowires have a smooth surface, with lengths of up to several hundreds of microns and diameters of 100–300 nm. A detailed study of both the chemical and structural composition was performed. Such ultralong silicon nitride nanowires demonstrate potential applications as materials for constructing nanoscale devices and as reinforcement in advanced composites.
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Acknowledgments
This study was financially supported by the Key Program of the National Natural Science Foundation of China (No. 19934003), the Grand Program of Natural Science Research of Anhui Education Department (No. ZD2007003-1), the Natural Science Research Program of Universities and Colleges of Anhui Province (No. KJ2008A19ZC), and the Opening Program of Cultivating Base of Anhui Key Laboratory of Spintronics and Nano-materials (No. 2012YKF10).
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Wang, WQ., Zou, XP., Zhou, NJ. et al. Synthesis of ultralong Si3N4 nanowires by a simple thermal evaporation method. Rare Met. 32, 186–190 (2013). https://doi.org/10.1007/s12598-013-0050-0
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DOI: https://doi.org/10.1007/s12598-013-0050-0