| 各向异性纳米铁氧体磁性材料的制备 |
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| 引用本文： | 李志华,钟云波,任忠鸣,邓康. 各向异性纳米铁氧体磁性材料的制备[J]. 上海金属, 2006, 28(1): 53-57,62 |
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| 作者姓名： | 李志华 钟云波 任忠鸣 邓康 |
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| 作者单位： | 上海大学上海市钢铁冶金重点实验室,上海,200072 |
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| 基金项目： | 教育部全国优秀博士学位论文作者专项基金;中国科学院资助项目;上海市科委资助项目 |
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| 摘 要： | 对纳米铁氧体磁性颗粒材料的制备方法进行了评述，探讨了磁场影响湿法制备不同磁性纳米颗粒形貌的可能性，并根据前人的研究结果以及作者的前期探索结果，表明磁场不但改变湿法化学反应的进程，对纳米颗粒的粒径也产生显著影响，还将影响纳米颗粒形貌。随着磁感应强度的增加，非磁性铁氧体前驱体纳米颗粒的形貌将由球状向链状、针状或纤维状形貌转变，进而提出了在强磁场下制备强各向异性纳米铁氧体磁性材料的设想。
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| 关 键 词： | 纳米铁氧体颗粒 各向异性 磁场 制备方法 |
| 收稿时间： | 2005-03-03 |
| 修稿时间： | 2005-03-03 |
PREPARATION OF ANISOTROPY NANO-MAGNETISM MATERIAL |
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| Li Zhihua,Zhong Yunbo,Ren Zhongming,Deng Kang. PREPARATION OF ANISOTROPY NANO-MAGNETISM MATERIAL[J]. Shanghai Metals, 2006, 28(1): 53-57,62 |
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| Authors: | Li Zhihua Zhong Yunbo Ren Zhongming Deng Kang |
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| Abstract: | The method for the preparation of nano-ferrite material was evaluated,and the possibility of the magnetic field effect on the shape of different magnetism nano-particles was discussed.Based on the former results as well as the author's basic experimental phenomenon,it was shown that the magnetic field not only affected the process of chemical reaction,but also the diameter of the nano particles and its shape.With increasing the magnetic flux density,the shape of non-magnetism ferrite precursor particles would change from sphere to chain-like,then to acicular or fibre-like.A new proposal for the preparation of strong anisotropy ferrite materials was suggested. |
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| Keywords: | Nano-Ferrite Particle Shape Anisotropy Magnetic Field Manufacture Method |
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