Preparation of Nano-sized Zirconium Carbide Powders through a Novel Active Dilution Self-propagating High Temperature Synthesis Method  

作　　者：达奥运 龙飞 WANG Jilin XING Weihong WANG Yang ZHANG Fan 王为民 FU Zhengyi 

机构地区：[1]State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology [2]Key Lab of New Processing Technology for Nonferrous Metals & Materials Ministry of Education, China, Guilin University of Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2015年第4期729-734,共6页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Program for New Century Excellent Talents in University(No.NCET-12-0655);the Guangxi Natural Science Foundation(No.2014GXNSFFA118004);the Self-determined and Innovative Research Funds of WUT(Nos.136643002 and No.2013IV058)

摘　　要：High quality nano-sized zirconium carbide （ZrC） powders were successfully fabricated via a developed chemical active dilution self-propagating high-temperature synthesis （SHS） method assisted by ball milling pretreatment process using traditional cheap zirconium dioxide powder （ZrO2）, magnesium powder （Mg） and sucrose （C12H22Oll） as raw materials. FSEM, TEM, HRTEM, SAED, XRD, FTIR and Raman, ICP- AES, laser particle size analyzer, oxygen and nitrogen analyzer, carbon/sulfur determinator and TG-DSC were employed for the characterization of the morphology, structure, chemical composition and thermal stability of the as-synthesized ZrC samples. The as-synthesized samples demonstrated high purity, low oxygen content and evenly distributed ZrC nano-powders with an average particle size of 50nm. In addition, the effects of endothermic rate and the possible chemical reaction mechanism were also discussed.High quality nano-sized zirconium carbide （ZrC） powders were successfully fabricated via a developed chemical active dilution self-propagating high-temperature synthesis （SHS） method assisted by ball milling pretreatment process using traditional cheap zirconium dioxide powder （ZrO2）, magnesium powder （Mg） and sucrose （C12H22Oll） as raw materials. FSEM, TEM, HRTEM, SAED, XRD, FTIR and Raman, ICP- AES, laser particle size analyzer, oxygen and nitrogen analyzer, carbon/sulfur determinator and TG-DSC were employed for the characterization of the morphology, structure, chemical composition and thermal stability of the as-synthesized ZrC samples. The as-synthesized samples demonstrated high purity, low oxygen content and evenly distributed ZrC nano-powders with an average particle size of 50nm. In addition, the effects of endothermic rate and the possible chemical reaction mechanism were also discussed.

关 键 词：zirconium carbide ZRC self-propagating high-temperature synthesis active dilution NANO-POWDERS ball milling 

分 类 号：TQ134.12[化学工程—无机化工] TB383.1[一般工业技术—材料科学与工程]