硅酸盐通报2018，Vol.37Issue(1)：195-199,5.
液相先驱体转化结合溶胶凝胶法合成ZrC-SiC纳米复合粉体
Syntheses of ZrC-SiC Nano-composite Powders via Liquid Precursor Conversion and Sol-Gel Method
摘要
Abstract
ZrC-SiC nano-composite powders were synthesized via liquid precursor conversion and sol-gel method,using zirconium oxychloride octahydrate as zirconium source, tetraethoxysilance as silica source and sucrose as carbon source.Functional groups of zirconium-containing polymer precursor were analyzed by fourier transform infrared spectrometer.Effects of Si/Zr molar radio on phase composition and microstructure of samples were investigated by X-ray diffractometer and scanning electronic microscopy, respectively.It is shown that the zirconium-containing polymer precursor has a chain-like or network-like structure.After sinterd at 1450℃for 2 h,there is still unreactive m-ZrO2phase in the sample whose Si/Zr molar radio is 0.28.When Si/Zr molar radio increases to 1.11,2.56,5.88 and 23.17,nearly pure ZrC-SiC nano-composite powders can be synthesized.The powder size changes little with the increasing of Si/Zr molar ratio.Composite powders with an average particle size of 90 nm and evenly elements distribution are obtained when Si/Zr molar ratio is 2.56.关键词
液相先驱体转化法/溶胶凝胶法/ZrC/SiC/纳米粉体Key words
liquid precursor conversion method/sol-gel method/ZrC/SiC/nano-powder分类
通用工业技术引用本文复制引用
廉晓庆,隆万坤,徐菊花,贾瑞强,彭龙贵..液相先驱体转化结合溶胶凝胶法合成ZrC-SiC纳米复合粉体[J].硅酸盐通报,2018,37(1):195-199,5.基金项目
陕西省自然科学基础研究计划一般项目(青年)(2017JQ5100) （青年）
西安科技大学博士启动金(2015QDJ014) （2015QDJ014）
西安科技大学培育基金(2014002) （2014002）
