粉末冶金技术2017，Vol.35Issue(1)：29-33,5.
熔盐合成法制备Mo2C纳米粉末的研究
Synthesis of Mo2C nanopowders by molten salt method
摘要
Abstract
Flake-like Mo2C nanopowders were prepared from (NH4)2MoO4 and C6H12O6 as the precursors with NaCl + KCl (1∶ 1by mole) as the raw material by molten salt reaction method at 900 ℃.Meanwhile,the evolutions of phase structure and microstructure during synthesizing Mo2C powders were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM).The results show that the phase evolution of MoO3 follows as MoO3→MoO2→Mo2C.Besides,the crystal transformation of Mo2C from orthorhombic to hexagonal structure occurs at 900-1000 ℃.The increase of reaction temperature and the extension of reaction time can accelerate the reaction process,but overhigh reaction temperature also contributes to the significant grain growth of Mo2C powders.关键词
碳化钼/纳米粉末/前驱体/熔盐合成法/物相组成/微观形貌Key words
molybdenum carbide/nanopowders/precursor/molten salt method/phase composition/microstructrue分类
矿业与冶金引用本文复制引用
任娇,金永中,张正权,杨林,苏晓慧..熔盐合成法制备Mo2C纳米粉末的研究[J].粉末冶金技术,2017,35(1):29-33,5.基金项目
四川省教育厅重点资助项目(15ZA0232) （15ZA0232）
自贡市科技局重点资助项目(2015HX19,15ZA0232) （2015HX19,15ZA0232）
四川理工学院科研培育资助项目(2014PY10) （2014PY10）
