|
|||||
|
|
| 镍纳米粉的阳极弧等离子体制备与粒度研究 | |
| 引用本文： | 魏智强,夏天东,戴剑锋,冯旺军,王青,闫鹏勋.镍纳米粉的阳极弧等离子体制备与粒度研究[J].真空科学与技术学报,2005,25(6):418-421,443. |
| 作者姓名： | 魏智强 夏天东 戴剑锋 冯旺军 王青 闫鹏勋 |
| 作者单位： | 1. 兰州理工大学理学院,兰州,730050;兰州理工大学,甘肃省有色金属新材料 2. 兰州理工大学,甘肃省有色金属新材料 3. 兰州理工大学理学院,兰州,730050 4. 兰州大学,物理科学与技术学院,兰州,730000 |
| 摘 要： | 采用阳极弧放电等离子体方法成功制备了高纯镍纳米粉体并对其粒度进行表征.采用X射线衍射(XRD)测试样品的物相和结构,并用Scherrer公式计算晶粒粒度;采用透射电子显微镜(TEM)分析样品的形貌、结构和粒度分布;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:本法所制备的镍纳米的晶体结构与相应的块体材料基本相同,为fcc结构的晶态,呈规则的球形链状分布,比表面积为14.23m2/g,粒径范围分布在(20～70) nm,平均粒径为47 nm,三种方法测得的结果基本一致. |
| 关 键 词： | Ni纳米粉 粒度 XRD法 TEM法 BET法 |
| 文章编号： | 1672-7126（2005）06-418-04 |
| 收稿时间： | 2005-07-12 |
| 修稿时间： | 2005-07-12 |
Particle Size Characterization of Ni Nanopowders Grown by Anodic Arc Plasma |
|
| Wei Zhiqiang,Xia Tiandong,Dai Jianfeng,Feng Wangjun,Wang Qing,Yan Pengxun.Particle Size Characterization of Ni Nanopowders Grown by Anodic Arc Plasma[J].JOurnal of Vacuum Science and Technology,2005,25(6):418-421,443. | |
| Authors: | Wei Zhiqiang Xia Tiandong Dai Jianfeng Feng Wangjun Wang Qing Yan Pengxun |
| Affiliation: | 1.School of Sciertces, Lanzhou Univ. of Tech. , Lanzhou ,730050, China ;2. State Key Lab. of Advancad New Non-ferrous Materials, Lanzhou Univ. of Tech. , Lanzhou 730050, China ; 3. School of Physical Science and Technology, Lanzhou University, Lanzhou 730000,China |
| Abstract: | Microstructures and particle size distribution of the high purity Ni nano-powders,grown by anodic arc discharge plasma deposition,were studied with X-ray diffraction(XRD) and transmission electron spectroscopy(TEM).The nitrogen absorption-desorption isotherm of the powder was evaluated with volumetric absorption analyzer.The results show that spherical shaped grains interconnects to form a bead-shaped chain with each crystal grain of fcc structure,similar to that of the bulk.Its specific surface area is 14.23 m~2/g,and its size distribution ranges from 20 nm to 70 nm with an averaged particle diameter of 47 nm. |
| Keywords: | Ni nanopowders Particle size XRD method TEM method BET method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |