氧化铈纳米杆的制备及静力学分析  

Preparation and Static Analysis of Cerium Oxide Nanorods

作　　者：席智强 陈勇[1] Xi Zhiqiang;Chen Yong(School of Mechanical Engineering,University of South China,Hengyang 421001,China)

机构地区：[1]南华大学机械工程学院,湖南衡阳421001

出　　处：《山东化工》2019年第8期49-51,共3页Shandong Chemical Industry

基　　金：湖南省重点学科建设项目的资金支持no [2014]85;南华大学研究生科学基金(编号:2018KYY068)~~

摘　　要：在低温水热条件下,使用不同量的醋酸锌封端剂Zn(CH_3COO)_2进行水热制备出不同尺寸的纳米杆晶体前驱体。XRD分析表明,合成后的晶体前驱体由非晶相组成。在300°下煅烧10小时后,纳米杆晶体前驱体结晶成具有立方萤石结构的CeO_2纳米杆。采用了NANO MEASURER软件分析四个样品的平均直径分别为220,280,300和370 nm,这证实了随着醋酸锌量的增加,杆状变得越来越粗。采用三维有限元分析结果表明:随着提高CeO_2纳米杆的长度,硅单晶衬底的压应力降低,纳米杆直径的影响对硅衬底压应力的影响是不规则的。Under different conditions of low temperature hydrothermal conditions,different sizes of nano-rod crystal precursors were prepared by hydrothermal treatment using different amounts of zinc acetate capping agent Zn(CH 3COO) 2.XRD analysis indicated that the synthesized crystal precursor consisted of an amorphous phase.After calcination at 300° for 10 hours,the nanorod crystal precursor crystallized into a CeO2 nanorod having a cubic fluorite structure.The NANO MEASURER software was used to analyze the average diameter of the four samples at 220,280,300 and 370 nm,respectively,which confirmed that as the amount of zinc acetate increased,the rod became thicker and thicker.The results of three-dimensional finite element analysis show that the compressive stress of the silicon single crystal substrate decreases with the increase of the length of the CeO2 nanorod.The influence of the diameter of the nanorod on the compressive stress of the silicon substrate is irregular.

关 键 词：低温 氧化铈 有限元法 多晶体 

分 类 号：TN3[电子电信—物理电子学] TG7[金属学及工艺—刀具与模具]