Micro-systems mechanics VOLUME III
Including :3 parts. With decreasing flying height of the slider arm in hard disk drives, the thin film on the disk surface becomes more and more critical for a stable working condition. In this project, the spreading behaviour of thin liquid PFPE on hard disk surface was investigated theoretically....
| Main Authors: | , |
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| Other Authors: | |
| Format: | Research Report |
| Published: |
2008
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| Online Access: | http://hdl.handle.net/10356/6824 |
| _version_ | 1826114635319738368 |
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| author | Lin, Rongming David J. Ewins |
| author2 | School of Mechanical and Production Engineering |
| author_facet | School of Mechanical and Production Engineering Lin, Rongming David J. Ewins |
| author_sort | Lin, Rongming |
| collection | NTU |
| description | Including :3 parts. With decreasing flying height of the slider arm in hard disk drives, the thin film on the disk surface becomes more and more critical for a stable working condition. In this project, the spreading behaviour of thin liquid PFPE on hard disk surface was investigated theoretically. Due to the thickness of the lubricant film, the impact of slip at the boundary was taken into consideration. A first-order slip model was developed. The diffusion coefficient Ds(h) was modified by incorporating the effective Knudsen number and molecular weight. It is found that slip has to be negative to ensure a maximum value of Ds(h) at a lubricant thickness of 1 nm. |
| first_indexed | 2024-10-01T03:42:21Z |
| format | Research Report |
| id | ntu-10356/6824 |
| institution | Nanyang Technological University |
| last_indexed | 2024-10-01T03:42:21Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/68242023-03-04T18:06:44Z Micro-systems mechanics VOLUME III Lin, Rongming David J. Ewins School of Mechanical and Production Engineering DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics Including :3 parts. With decreasing flying height of the slider arm in hard disk drives, the thin film on the disk surface becomes more and more critical for a stable working condition. In this project, the spreading behaviour of thin liquid PFPE on hard disk surface was investigated theoretically. Due to the thickness of the lubricant film, the impact of slip at the boundary was taken into consideration. A first-order slip model was developed. The diffusion coefficient Ds(h) was modified by incorporating the effective Knudsen number and molecular weight. It is found that slip has to be negative to ensure a maximum value of Ds(h) at a lubricant thickness of 1 nm. 2008-09-17T14:35:18Z 2008-09-17T14:35:18Z 1998 1998 Research Report http://hdl.handle.net/10356/6824 Nanyang Technological University application/pdf |
| spellingShingle | DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics Lin, Rongming David J. Ewins Micro-systems mechanics VOLUME III |
| title | Micro-systems mechanics VOLUME III |
| title_full | Micro-systems mechanics VOLUME III |
| title_fullStr | Micro-systems mechanics VOLUME III |
| title_full_unstemmed | Micro-systems mechanics VOLUME III |
| title_short | Micro-systems mechanics VOLUME III |
| title_sort | micro systems mechanics volume iii |
| topic | DRNTU::Engineering::Mechanical engineering::Mechanics and dynamics |
| url | http://hdl.handle.net/10356/6824 |
| work_keys_str_mv | AT linrongming microsystemsmechanicsvolumeiii AT davidjewins microsystemsmechanicsvolumeiii |