Magnetic fluid aggregates magnetic columns when a perpendicular magnetic field is applied. The arrangement of magnetic columns forms hexagonal structures in equilibrium state. We study the ordering classification of colummnar lattices with time elapsed.
The perpendicular magnetic field can be categorized as AC and DC fields. To couduct experiments, AC filed changes frequency, and DC field changes the final intensity of magnetice field. We use the bond-orientation correlation function, FFT, and Delaunay triangulation plots of the images to analyze the data which is obtained from experiments. Through digital image processing techniques, we can also determine positions, displacements,and average speed of magnetic columns to undersand the two-dimensional ordering processes, while applying megnetic fields.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0701102-230208 |
| Date | 01 July 2002 |
| Creators | Lu, Chun-Kaung |
| Contributors | none, none, I. M. Jiang, Cheng Tien |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0701102-230208 |
| Rights | unrestricted, Copyright information available at source archive |
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