金属铝粉直接氮化工艺中镁粉催化作用研究  

Study on Magnesium Catalysis in Direct Nitridation of Al Powder

作　　者：李阳[1] 陈奎[1] 

机构地区：[1]五邑大学应用物理与材料学院,江门529020

出　　处：《人工晶体学报》2015年第7期1879-1884,共6页Journal of Synthetic Crystals

基　　金：广东省教育厅科技创新项目(2012KJCX0100);广东省自然科学基金(S2011040005742);广东省教育厅教育科学项目(2014GXJK097);江门市科技计划项目

摘　　要：首先分析了Mg在直接氮化制备Al N中的催化作用,然后采用实验的方法进行验证。实验中对Mg的含量比例进行优化,并通过XRD、SEM、EDS、TG和DTG进行测试、分析和表征。结果表明,当铝粉与镁粉的质量比例不同时,镁粉起到不同程度的催化作用,产物表现为不同的外观形貌及不尽相同的物相组成。当铝粉与镁粉的质量比例为9/1,可得到直径均匀、长度可观的Al N纳米线结构。此外,结合V-S机制对纳米线的生长机理进行了解释。Mg catalytic role in the preparation of AIN in direct nitriding was analyzed, and then validated by using the experimental method. In addition, the content of Mg was optimized, and characterized by XRD, SEM, EDS, TG and DTG. The results show that when the mass ratio of aluminum and magnesium is different, Mg has different catalytic effeet, and product shows different morphologies and phase. When the mass ratio of aluminum and magnesium powder considerable A1N nanowire structures can be obtained. were explained combined with V-S mechanism. is 9/1 obtained uniform diameter, and length Furthermore, the growth mechanism of nanowires

关 键 词：氮化 AlN纳米线 镁粉催化 生长机理 

分 类 号：TN304[电子电信—物理电子学]