Synthesis of Vanadium Carbide Nanopowders via Mechanical Alloying and Microwave Heating Methods
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2019年第2期
论文作者：杨宝震 ZHENG Hongjuan 赵志伟 ZHENG Juan CHEN Feixiao
文章页码：332 - 336
摘 要：A simple and fast method of preparation of vanadium carbide（V8 C7） nanopowders using mechanical alloying assisted microwave heating method was demonstrated. The micron-sized V2O5 and nano-sized carbon black were used as starting materials. The as-prepared powders were characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, thermogravimetric and differential scanning calorimetry（TG-DSC）, transmission electron microscopy（TEM）, and X-ray photoelectron spectroscopy（XPS） techniques. The experimental results show that the V8C7 powders can be obtained by microwave heating at 1 100 ℃ for 1 h（34 wt% C）. The synthesized powders show good dispersion and are mainly composed of spherical or near-spherical particles with a mean diameter of about 30 nm. The XPS spectra show that the surface of the specimen mainly consists of V, C, and O three species elements.
杨宝震，ZHENG Hongjuan，赵志伟，ZHENG Juan，CHEN Feixiao
School of Material Science and Engineering, Henan University of Technology
摘 要：A simple and fast method of preparation of vanadium carbide（V8 C7） nanopowders using mechanical alloying assisted microwave heating method was demonstrated. The micron-sized V2O5 and nano-sized carbon black were used as starting materials. The as-prepared powders were characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, thermogravimetric and differential scanning calorimetry（TG-DSC）, transmission electron microscopy（TEM）, and X-ray photoelectron spectroscopy（XPS） techniques. The experimental results show that the V8C7 powders can be obtained by microwave heating at 1 100 ℃ for 1 h（34 wt% C）. The synthesized powders show good dispersion and are mainly composed of spherical or near-spherical particles with a mean diameter of about 30 nm. The XPS spectra show that the surface of the specimen mainly consists of V, C, and O three species elements.
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