Synthesis of Vanadium Carbide Nanopowders via Mechanical Alloying and Microwave Heating Methods

作     者：杨宝震 ZHENG Hongjuan 赵志伟 ZHENG Juan CHEN Feixiao 

作者机构：School of Material Science and Engineering Henan University of Technology 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2019年第34卷第2期

页      面：332-336页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Funded by the Natural Science Foundation of China(21404032) the Program for Science&Technology Innovation Talents in Universities of Henan Province(16HASTIT011) the Funding Scheme for Young Teachers of Higher School in Henan Province(2014GGJS-062) the Fundamental Research Funds for the Henan Provincial Colleges and Universities(2014YWQQ19) the Development of Science and Technology Plan Projects of Zhengzhou City(20140771) the Foundation of Henan University of Technology(2014JCYJ13),China 

主　　题：vanadium carbide mechanical alloying microwave heating microstructure nanopowders 

摘      要：A simple and fast method of preparation of vanadium carbide(V_8 C_7) nanopowders using mechanical alloying assisted microwave heating method was demonstrated. The micron-sized V_2O_5 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 V_8C_7 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.