| Hydrodynamic Properties of Fe3O4 Kerosene-Based Ferrofluids with Narrow Particle Size Distribution |
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| 引用本文： | 张建辉 许雪飞 司明苏 周又和 薛德胜. Hydrodynamic Properties of Fe3O4 Kerosene-Based Ferrofluids with Narrow Particle Size Distribution[J]. 中国物理快报, 2005, 22(11): 2944-2946 |
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| 作者姓名： | 张建辉 许雪飞 司明苏 周又和 薛德胜 |
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| 作者单位： | [1]Key laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000 [2]School of Mechatronic Engineering, Lanzhou Jiaotong University, Lanzhou 730070 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10374038, and the Trans-Century Training Programme Foundation for the Talent of M0E of China. |
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| 摘 要： |
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| 关 键 词： | 水力性质 Fe3O4 铁磁流体 磁场粒子 磁化曲线 Bayesian定理 |
| 收稿时间： | 2005-04-11 |
| 修稿时间： | 2005-04-11 |
Hydrodynamic Properties of Fe3O4 Kerosene-Based Ferrofluids with Narrow Particle Size Distribution |
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| ZHANG Jian-Hui, XU Xue-Fei, SI Ming-Su, ZHOU You-He, XUE De-Sheng. Hydrodynamic Properties of Fe3O4 Kerosene-Based Ferrofluids with Narrow Particle Size Distribution[J]. Chinese Physics Letters, 2005, 22(11): 2944-2946 |
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| Authors: | ZHANG Jian-Hui XU Xue-Fei SI Ming-Su ZHOU You-He XUE De-Sheng |
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| Abstract: | We investigate the hydrodynamic properties of Fe3O4 kerosene-based ferrofluids with narrow particle size distribution. The ferrofluids are synthesized by improving chemical coprecipitation technique. A narrow distribution of 8.6-10.8nm particle sizes is obtained from the magnetization curve with the free-form model based on the Bayesian inference theory. The fitting result is consistent with average particle size obtained from x-ray diffraction. With the increase of applied magnetic field and magnetic particle concentration, apparent viscosity of ferrofluids increases. At concentration 4.04%, the type of flow for the ferrofluid transforms from Newtonian to Bingham plastic fluid as the applied magnetic field increases. |
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