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Issue 7, 2015
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Growth mechanism and PL properties of β-sialon nanobelts/nanowires synthesized by a process of aluminothermic reduction nitridation of zircon

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Abstract

Large scale β-sialon nanobelts/nanowires and ZrN–sialon composite powders were prepared via aluminothermic reduction nitridation under different conditions with flowing N2. The phase composition, morphology, and microstructure of the as-prepared products were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM/HRTEM), Fourier-transform infrared spectroscopy (FT-IR) and energy dispersive X-ray spectroscopy (EDS). The experiment results show that the phase compositions and the ratio of nanostructures to powder can be tailored by the experimental conditions. The formation of β-sialon nanostructures was dominated by a vapor–solid (VS) mechanism. The photoluminescence spectrum of the β-sialon nanostructures exhibits a special emission peak located in the violet–blue spectral range, making possible potential applications in blue-light emitting diodes and display devices. This process also provided a feasible way to prepare reinforcing β-sialon nanostructures in situ within the ZrN–sialon composite powders.

Graphical abstract: Growth mechanism and PL properties of β-sialon nanobelts/nanowires synthesized by a process of aluminothermic reduction nitridation of zircon

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Publication details

The article was received on 12 Nov 2014, accepted on 22 Dec 2014 and first published on 23 Dec 2014


Article type: Paper
DOI: 10.1039/C4CE02245A
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CrystEngComm, 2015,17, 1591-1596

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    Growth mechanism and PL properties of β-sialon nanobelts/nanowires synthesized by a process of aluminothermic reduction nitridation of zircon

    H. Liu, F. Meng, Q. Li, Z. Huang, S. Luo, L. Yin, M. Fang, Y. Liu and X. Wu, CrystEngComm, 2015, 17, 1591
    DOI: 10.1039/C4CE02245A

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