| 强磁性纳米材料CoFe2O4磁稀释体系磁化强度的表征 |
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| 引用本文： | 秦淑琪,纳鹏军,李锡恩,杨武. 强磁性纳米材料CoFe2O4磁稀释体系磁化强度的表征[J]. 宁夏大学学报(自然科学版), 2006, 27(1): 53-56 |
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| 作者姓名： | 秦淑琪 纳鹏军 李锡恩 杨武 |
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| 作者单位： | 1. 西北师范大学,化学化工学院,甘肃,兰州,730070
2. 宁夏大学,化学化工学院,宁夏,银川,750021 |
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| 基金项目： | 引进国际先进农业科技计划(948计划) |
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| 摘 要： | 建立了一个表征强磁性纳米材料磁稀释体系磁化强度的新方法，该方法不同于传统的Gouy法．采用永久磁矩和未偶电子为零的无磁性物质为磁稀释体系，将纳米材料的强磁性稀释后，用Gouy磁天平表征了不同粒径系列的强磁性纳米材料CoFe2O4的磁化强度，探讨了纳米材料粒径与磁稀释体系磁化强度的关系．结果表明，谊方法具有样品用量少、数据准确、重现性好的优点．
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| 关 键 词： | 纳米材料 粒径 磁稀释体系磁化强度 表征 |
| 文章编号： | 0253-2328（2006）01-0053-04 |
| 收稿时间： | 2005-02-25 |
| 修稿时间： | 2005-02-25 |
The Characterization for Magnetic Strength of Magnetic Diluter System of High Magnetic Nonmaterials CoFe2O4 |
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| Qin Shuqi,Na Pengjun,Li Xien,Yang Wu. The Characterization for Magnetic Strength of Magnetic Diluter System of High Magnetic Nonmaterials CoFe2O4[J]. Journal of Ningxia University(Natural Science Edition), 2006, 27(1): 53-56 |
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| Authors: | Qin Shuqi Na Pengjun Li Xien Yang Wu |
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| Affiliation: | 1. School of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070 ,China; 2. School of Chemistry and Chemical Engjneering, Ningxia University, Yinchuan 750000,China |
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| Abstract: | In this paper, a new method to characterize of magnetic strength of CoFe2O4 high magnetic nanoparticles is presented which is different with conventional Gouy. An unrnagnetic material which permanent magnetic distance and single electron are zero is selected as magnetic diluter system. The magnetic strength of high magnetic nanomaterials CoFezO4 has been characterized using Gouy magnetic balance by adding magnetic diluter system in samples so that the high magnetic of nanoparticles is diluted. The magnetic strength with different nanoparticles size is studied. The results indicate, this method has the advantages of using small amount of sample, accurate and reproducible. |
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| Keywords: | nanomaterials nanoparticles size magnetic strength of magnetic diluter system characterization |
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