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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 李雨(U Lei) | |
dc.contributor.author | Kun-Chi Lu | en |
dc.contributor.author | 呂昆其 | zh_TW |
dc.date.accessioned | 2021-06-08T00:51:50Z | - |
dc.date.copyright | 2020-08-24 | |
dc.date.issued | 2020 | |
dc.date.submitted | 2020-08-14 | |
dc.identifier.citation | [1] R. P. Feynman, 'There's plenty of room at the bottom,' Lecture on December 26, 1959, at the annual meeting of American Physical Society, at the California Institute of Technology; reprinted in Journal of Microelectromechanical Systems, 1, 60-66 (1992). [2] N. Taniguchi, 'On the basic concept of nanotechnology,' Proc. Intl. Conf. Prod. Eng. Tokyo, Part II, Japan Society of Precision Engineering, (1974). [3] 李雨、施博仁、江宏仁、趙聖德、李皇德、陳瑞林、陳冠宇, '奈米科技中的力學,' 國立臺灣大學出版中心 (2018). [4] J. C. Maxwell, 'A treatise on electricity and magnetism,' Clarendon Press, Oxford (1873). [5] S. U. Choi and J. A. Eastman, 'Enhancing thermal conductivity of fluids with nanoparticles,' in Developments and Applications of Non-Newtonian Flows, D. A. Singer and H. P. Wang, Eds., American Society of Mechanical Engineers, New York, FED–231/MD-66: 99–105 (1995). [6] S. Lee, S. U. S. Choi, S. Li, and J. A. Eastman, 'Measuring thermal conductivity of fluids containing oxide nanoparticles,' ASME J. Heat Transfer, Vol. 121, No. 2, pp. 280-289, (1999). [7] J. Buongiorno, 'Convective transport in nanofluids,' ASME Journal of Heat Transfer, Vol. 128, No. 3, pp. 240-250, (2006). [8] R. E. Rosensweig, “Ferrohydrodynamics,” Cambridge University Press, Cambridge, New York (1985). [9] P. D. Shima, J. Philip, and B. Raj, 'Magnetically controllable nanofluid with tunable thermal conductivity and viscosity,' Applied Physics Letters, Vol. 95, No. 13, 133112 (2009). [10] S. S. Papell, 'Low viscosity magnetic fluid obtained by the colloidal suspension of magnetic particles,' US Patent 3 215 572 (1965). [11] R. E. Rosensweig, R. Kaiser and G. Miskolczy, “Viscosity of magnetic fluid in a magnetic field,” Journal of Colloid and Interface Science, Vol. 29, No. 4, pp. 680-689, (1969). [12] J. P. McTague, “Magnetoviscosity of magnetic colloids,” Journal of Chemical Physics, Vol. 51, No. 1, pp. 133-136, (1969). [13] M. I. Shliomis, “Effective viscosity of magnetic suspensions,” Soviet Phys. JETP, Vol. 34, pp. 1291-1294 (1972). [14] S. Odenbach, 'Magnetoviscous Effects in Ferrofluids,' Springer-Verlag, 2002. [15] Zubarev, A. Y. and L. Y. Iskakova, “Theory of physical properties of magnetic liquids with chain aggregates,” Soviet Phys. JETP, Vol. 80, pp. 857-866 (1995). [16] L. M. Pop and S. Odenbach, 'Capillary viscosimetry on ferrofluids,' Journal of Physics - Condensed Matter, Vol. 20, 204139, (2008). [17] T. Weser and K. Stierstadt, “Discrete particle size distribution in ferrofluids,” Zeitschrift Fur Physik B-Condensed Matter, Vol. 59, No. 3, pp. 253-256 (1985). [18] A. N. Tikhonov and V. Y. Arsenin, 'Solutions of ill-posed problems,' Wiley, New York, pp. 1-30 (1977). [19] 張銘軒, '磁場效應對於奈米流體黏度之影響,' 國立臺灣大學工學院應用力學所碩士論文 (2016). [20] 周士凱, '四氧化三鐵奈米流體在磁場作用下之黏度實驗探討,' 國立臺灣大學工學院應用力學所碩士論文 (2018). [21] 顏佑軒, '磁性奈米流體黏度的實驗研究,' 國立臺灣大學工學院應用力學所碩士論文 (2019). [22] 劉宇恩, '以狹縫黏度計研究磁性奈米流體之黏度,' 國立臺灣大學工學院應用力學所碩士論文 (2019). [23] MalvernPanalytical.Zetasizer Nano ZS Available: https://www.malvernpanalytical.com/en/products/product-range/zetasizer-range/zetasizer-nano-range/zetasizer-nano-zs [24] Israelachvilli, J. N., “Intermolecular and surface forces,” 3nd ed., Academic Press (2011). [25] R. Lopez-Esparza, M. A. B. Altamirano, E. Perez, and A. G. Goicochea, 'Importance of Molecular Interactions in Colloidas Dispersions,' Advances in Condensed Matter Physics, vol. 2015, pp. 1-8, 2015. [26] S. Morup, M. F. Hansen, and C. Frandsen, 'Magnetic interactions between nanoparticles,' Beilstein Journal of Nanotechnology, Vol. 1, pp. 182-190 (2010). [27] J. K. Jiang, G. Oberdorster, and P. Biswas, 'Characterization of size, surface charge, and agglomeration state of nanoparticle dispersions for toxicological studies,' Journal of Nanoparticle Research, Vol. 11, No. 1, pp. 77-89, (2009). [28] J. S. Taurozzi, V. A. Hackley, and M. R. Wiesner, 'Ultrasonic dispersion of nanoparticles for environmental, health and safety assessment - issues and recommendations,' Nanotoxicology, Vol. 5, No. 4, pp. 711-729 (2011). [29] C. Devin Jr, 'Survey of thermal, radiation, and viscous damping of pulsating air bubbles in water,' The Journal of the Acoustical Society of America, vol. 31, no. 12, pp. 1654-1667, 1959. [30] S. Dutta, A. Mitra, R. De, A. Sardar, S. Ghosh, and T. Maiti, 'Determination of Magnetic Susceptibility by Quincke Method,' Mac science journal, vol. 1, pp. 143-151, 2013. [31] F. Babick, 'Suspensions of colloidal particles and aggregates,' Springer, 2016. [32] U. Nobbmann.What is the maximum visocsity for DLS? , 2017, Available: https://www.materials-talks.com/blog/2017/09/26/what-is-the-maximum-viscosity-for-dls/ [33] M. Lee, 'X-ray diffraction for materials research,' Apple Academic Press, New York (2016). [34] A. UI-Hamid, 'A Beginners' Guide to Scanning Electron Microscopy,' Springer, (2018). [35] R. Massart, 'Preparation of aqueous magnetic liquids in alkaline and acadic media,' IEEE Transactions on Magnetics, Vol. 17, No. 2, pp. 1247-1248, (1981). [36] S. E. Khalafalla and G. W. Reimers, 'Preparation of dilution-stable aqueous magnetic fluids,' IEEE Transactions on Magnetics, Vol. 16, No. 2, pp. 178-183, (1980). [37] M. Mahdavi, M. B. Ahmad, M. J. Haron, F. Namvar, B. Nadi, M. Z. A. Rahman and J. Amin, 'Synthesis, Surface Modification and Characterisation of Biocompatible Magnetic Iron Oxide Nanoparticles for Biomedical Applications,' Molecules, Vol. 18, No. 7, pp. 7533-7548, (2013). [38] M. C. Mascolo, Y. B. Pei, and T. A. Ring, 'Room Temperature Co-Precipitation Synthesis of Magnetite Nanoparticles in a Large pH Window with Different Bases,' Materials, Vol. 6, No. 12, pp. 5549-5567, (2013). [39] N. C. C. Lobato, M. B. Mansur, and A. D. Ferreira, 'Characterization and Chemical Stability of Hydrophilic and Hydrophobic Magnetic Nanoparticles,' Materials Research-Ibero-American Journal of Materials, Vol. 20, No. 3, pp. 736-746, (2017). [40] D. Griffiths, 'Introduction to Electrodynamics,' Prentice-Hall, Upper Saddle River, New Jersey (1999). [41] MalvernInstrumentsLimited. Ferrofluids: Characterisation Using Dynamic Light Scattering, 2017 , Available:https://www.malvernpanalytical.com/en/learn/knowledge-center/application-notes/AN110415FerrofluidsCharacterisationUsingDLS.html [42] https://www.horiba.com/en_en/dynamic-light-scattering-dls-z-average/ | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/18121 | - |
dc.description.abstract | 磁性奈米流體為液體中穩定懸浮有磁性奈米粒子的懸浮液,其黏度可因外加磁場而改變、而此一現象被稱為磁黏效應。本文旨在研究懸浮粒子粒徑與磁黏效應的關係,共完成如下三項工作。(i)透過對製程溫度的控制,以化學共沉澱法產生兩種不同粒徑的四氧化三鐵(Fe3O4)粒子:B粒子(溫度25°C,單體粒子平均粒徑Dmo = 6.49 nm,包覆油酸懸浮在煤油中粒子的z平均粒徑Dza ≈ 29 nm)、和C粒子(75°C下,Dmo = 9.44 nm及Dza ≈ 39 nm)。再利用此兩種粒子(均先包覆油酸)按不同比例分散在變壓器油內,以合成五種體積百分率均為2%的磁性奈米流體,粒子比例分別為:100% B粒子、95% B粒子和5% C粒子、90% B粒子和10% C粒子、80% B粒子和20% C粒子、及100% C粒子。(ii)以磁化儀量測上述五種流體的磁化率、並採用磁性粒徑分析法計算上述五種磁性奈米流體之磁性粒徑分佈。(iii)以改裝式布氏(Brookfield)黏度計,對上述五種流體在20°C及不同強度(60、100及140 Gauss)的週期性磁場下進行磁黏實驗,得到以下結論:(1)磁性奈米流體在磁場作用下之黏度增益值隨添加之大顆粒數量增加而提升。(2)磁性奈米流體之黏度於磁場開啟時快速增加、在磁場關閉時亦可迅速回復原值。(3)添加不同數量之大顆粒子於以小顆粒子為主體之奈米流體中,從黏度實驗及粒徑分佈結果可判斷其黏度增益值主由較大顆粒之粒子所造成;文獻中(Odenbach, 2002)有提出一項猜測,指因大顆粒子的存在,使粒子間較易形成磁誘導鏈狀結構、而導致黏度增加,本研究對此一猜測提供了實驗佐證。 | zh_TW |
dc.description.abstract | Magnetic nanofluid is a liquid suspended stability with magnetic nano particles. Its viscosity can be altered by the application of a magnetic field, and the associated phenomenon is called magnetoviscosity. The goal of this thesis is to study the effect of particle size distribution on magnetoviscosity. The works completed are as follows. (i) Through the temperature control in the chemical processes, two Fe3O4 particles with different sizes can be generated using the chemical co-precipitation method: the B particles (reaction temperature 25°C, the average monomer diameter Dmo = 6.49 nm, and the z-average particle diameter, Dza ≈ 29 nm, for particles coated with oleic acid in kerosene), and the C particles (reaction temperature 75°C, Dmo = 9.44 nm and Dza ≈ 39 nm). Five nanofluids with different compositions of B and C particles (coated with oleic acid) were synthesized by dispersing them into transformer oil at volume fraction 2%, they are: 100% B particles, 95% B and 5% C particles, 90% B and 10% C particles, 80% B and 20% C particles, and 100% C particles. (ii) Measure the magnetization of the above five fluids, and apply the results to calculate the magnetic particle size distribution using magnetogranulometric analysis. (iii) Measure the viscosity of those five nanofluids using a modified Brookfield viscosity at 20°C in an applied cyclic magnetic field with different strengths (60、100, and 140 Gauss). We found: (1) The viscosity enhancement is proportional to the amount of larger (C) particles in the fluid. (2) The fluid responds sharply as the magnetic field is switched on and off, and can recover the original value without magnetic effect when the field is off. (3) By comparing the viscosity enhancement with the magnetic particle size distribution, it was found that the viscosity enhancement is mainly associated with the larger particles in the fluid. This supports experimentally the reasoning proposed by Odenbach(2002), that particle chains can be initiated and formed easily in nanofluids through the dipole-dipole interaction associated with larger particles, in comparing with that associated with smaller particles. | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T00:51:50Z (GMT). No. of bitstreams: 1 U0001-1308202014450600.pdf: 5298191 bytes, checksum: 7b939001a06c86f650bdbfe4d7f8da38 (MD5) Previous issue date: 2020 | en |
dc.description.tableofcontents | 致謝 I 摘要 II Abstract III 目錄 V 圖目錄 VII 表目錄 XII 第一章 緒論 1 1.1 前言 1 1.2 文獻回顧 3 1.3 研究動機及目的 6 第二章 原理 8 2.1 粒子間之相互作用力 8 2.2 奈米粒子所受的外力 14 2.3 凝聚與聚結 16 2.4 超聲波處理 18 2.5 酸鹼度計原理 19 2.6 磁化儀原理 21 2.7 黏度計原理 23 2.8 粒子特性檢測 27 第三章 實驗方法與步驟 32 3.1 奈米流體配製 32 3.2 奈米粒子粒徑檢測 39 3.3 布氏黏度計之改良 41 3.4 磁化曲線量測 48 3.5 磁性粒徑分析法 49 3.6 磁性奈米流體之磁黏效應 51 第四章 實驗結果與討論 54 4.1 四氧化三鐵奈米粒子檢測 54 4.2 磁化曲線 62 4.3 磁性粒徑分析法 63 4.4 磁性奈米流體之磁黏效應 65 4.5 粒徑分佈與磁黏效應之關係 72 第五章 結論與未來展望 77 5.1 結論 77 5.2 未來展望 79 參考文獻 80 | |
dc.language.iso | zh-TW | |
dc.title | 磁性奈米流體中粒徑分佈與磁黏效應的關係 | zh_TW |
dc.title | Relation between Particle Size Distribution and Magnetoviscosity in Magnetic Nanofluids | en |
dc.type | Thesis | |
dc.date.schoolyear | 108-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 沈弘俊(Horn-Jiunn Sheen),王安邦(An-Bang Wang) | |
dc.subject.keyword | 磁性奈米流體,磁黏效應,四氧化三鐵粒子,磁性粒徑分析,粒徑分佈, | zh_TW |
dc.subject.keyword | Magnetic nanofluids,Magnetoviscous effect,Fe3O4 particles,Magnetogranulometric analysis,Particle size distribution, | en |
dc.relation.page | 82 | |
dc.identifier.doi | 10.6342/NTU202003255 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2020-08-14 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 應用力學研究所 | zh_TW |
顯示於系所單位: | 應用力學研究所 |
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