| 锰锌铁氧体纳米颗粒及其磁性液体的制备与磁性研究 |
| |
| 引用本文： | 李定国,熊杰,卢文华,熊永红.锰锌铁氧体纳米颗粒及其磁性液体的制备与磁性研究[J].人工晶体学报,2012,41(2):359-364. |
| |
| 作者姓名： | 李定国 熊杰 卢文华 熊永红 |
| |
| 作者单位： | 华中科技大学物理学院,武汉430074;海军工程大学理学院,武汉430033;海军工程大学理学院,武汉,430033;华中科技大学物理学院,武汉,430074 |
| |
| 摘 要： | 采用化学共沉淀法制备出Mn1-xZnx Fe2O4(x=0.1,0.2,0.3)磁性颗粒,通过X射线衍射(XRD)测试分析了Mn1-xZnxFe2O4(x =0.1,0.2,0.3)颗粒的结构参数及平均粒径,结果表明制备的样品为锰锌铁氧体纳米粒子.用振动样品磁强计(VSM)测量了样品的饱和磁化强度,对应x=0.1,0.2,0.3分别为25.3、44.4、30.7 emu/g.选用Mn0.8Zn0.2FeO4纳米粒子,通过油酸作分散剂,分散到航空煤油中制备出磁性液体样品,研究分析了磁性液体的磁化特性和热磁特性.
|
| 关 键 词： | 锰锌铁氧体 化学共沉淀法 磁性液体 磁化强度 热磁效应 |
Preparation and Magnetic Properties of Mn-Zn Ferrite Nanoparticles and Magnetic Fluid |
| |
| LI Ding-guo
,
XIONG Jie
,
LU Wen-hua
,
XIONG Yong-hong.Preparation and Magnetic Properties of Mn-Zn Ferrite Nanoparticles and Magnetic Fluid[J].Journal of Synthetic Crystals,2012,41(2):359-364. |
| |
| Authors: | LI Ding-guo XIONG Jie LU Wen-hua XIONG Yong-hong |
| |
| Institution: | 1 (1.School of Physics,Huazhong University of Science and Technology,Wuhan 430074,China; 2.College of Science,Naval University of Engineering,Wuhan 430033,China) |
| |
| Abstract: | Mn1-xZnxFe2O4(x=0.1,0.2,0.3) ferrite magnetic particles were prepared by chemical coprecipitation method.The structure and the average particle sizes were determined by X-ray diffraction(XRD) analysis,and it shows that the prepared particles are Mn-Zn ferrite nanoparticles.The saturation magnetization of samples was 25.3 emu/g,44.4 emu/g and 30.7 emu/g for x=0.1,0.2 and 0.3,respectively,and which were measured by vibrating sample magnetometer(VSM).Mn0.8Zn0.2Fe2O4 nanoparticles were used for ferrofluid preparation,which were suitably dispersed in aviation kerosene using oleic acid as the surfactant.Saturation magnetization and thermomagnetic properties of the ferrofluids were measured and discussed. |
| |
| Keywords: | Mn-Zn ferrite chemical coprecipitation method magnetic fluid magnetization thermomagnetic effect |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《人工晶体学报》浏览原始摘要信息 |
| 点击此处可从《人工晶体学报》下载免费的PDF全文 |
|
