镍纳米粉的粒度研究  

Investigation of Particle Size of Ni Nanopowders

作　　者：王明旭[1] 魏志强[2] 李年春[2] 赵学福[2] 闫鹏勋[3] 

机构地区：[1]兰州工业高等专科学校工程训练中心,兰州730050 [2]兰州理工大学理学院,兰州730050 [3]兰州大学物理科学与技术学院,兰州730000

出　　处：《材料导报》2006年第F05期166-168,共3页Materials Reports

基　　金：甘肃省自然科学基金资助项目(批准号:3ZS042-B25-017)

摘　　要：采用阳极弧放电等离子体方法制备了高纯镍纳米粉末并对其粒度进行了表征。利用X射线衍射法(XRD)测试样品的晶型和粒度,用谢乐Scherrer公式计算颗粒粒度;采用透射电子显微镜(TEM)分析样品的形貌和粒度分布;采用表面吸附仪测定样品的N2吸附-脱附等温线,并由BET理论模型计算出样品的比表面积和颗粒粒度。实验结果表明三者测得的值基本一致。Pure Ni nanopowders are prepared by anodic arc discharging plasma method, and the particle sizes are characterized. The crystal microstructure and particle size of the product are characterized by X-ray diffraction （XRD）, and the particle sizes is calculated from the Scherrer formula; the morphology, the size and size distribution of the product are analyzed by transmission electron microscopy （TEM）. The Nitrogen absorption-desorption isotherm of the samples is measured by volumetric absorption analyzer, and the specific surface area and average particle diameter of the sample are calculated from the BET academic model. The experiment results show that the particle size values obmined from three methods are consistent with each other.

关 键 词：Ni纳米粉 粒度 Scherrer公式 TEM法 BET比表面积法 

分 类 号：O766[理学—晶体学] TG115[金属学及工艺—物理冶金]