Mechanistic Features of Nanodiamonds in the Lapping of Magnetic Heads
Nanodiamonds, which are the main components of slurry in the precision lapping process of magnetic heads, play an important role in surface quality. This paper studies the mechanistic features of nanodiamond embedment into a Sn plate in the lapping process. This is the first study to develop mathema...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/326427 |
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| author | Xionghua Jiang Zhenxing Chen Joy Wolfram Zhizhou Yang |
| author_facet | Xionghua Jiang Zhenxing Chen Joy Wolfram Zhizhou Yang |
| author_sort | Xionghua Jiang |
| collection | DOAJ |
| description | Nanodiamonds, which are the main components of slurry in the precision lapping process of magnetic heads, play an important role in surface quality. This paper studies the mechanistic features of nanodiamond embedment into a Sn plate in the lapping process. This is the first study to develop mathematical models for nanodiamond embedment. Such models can predict the optimum parameters for particle embedment. From the modeling calculations, the embedded pressure satisfies p0=3/2·W/πa2 and the indentation depth satisfies δ=k1P/HV. Calculation results reveal that the largest embedded pressure is 731.48 GPa and the critical indentation depth δ is 7 nm. Atomic force microscopy (AFM), scanning electron microscopy (SEM), and Auger electron spectroscopy (AES) were used to carry out surface quality detection and analysis of the disk head. Both the formation of black spots on the surface and the removal rate have an important correlation with the size of nanodiamonds. The results demonstrate that an improved removal rate (21 nm·min−1) can be obtained with 100 nm diamonds embedded in the plate. |
| format | Article |
| id | doaj-art-c2752a8839504ca1b5db02bcf80abead |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-c2752a8839504ca1b5db02bcf80abead2025-02-03T07:25:24ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/326427326427Mechanistic Features of Nanodiamonds in the Lapping of Magnetic HeadsXionghua Jiang0Zhenxing Chen1Joy Wolfram2Zhizhou Yang3School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaNational Center for Nanoscience & Technology of China, Beijing 100190, ChinaDepartment of Emergency, Jinling Hospital Medical School of Nanjing University, Nanjing 210000, ChinaNanodiamonds, which are the main components of slurry in the precision lapping process of magnetic heads, play an important role in surface quality. This paper studies the mechanistic features of nanodiamond embedment into a Sn plate in the lapping process. This is the first study to develop mathematical models for nanodiamond embedment. Such models can predict the optimum parameters for particle embedment. From the modeling calculations, the embedded pressure satisfies p0=3/2·W/πa2 and the indentation depth satisfies δ=k1P/HV. Calculation results reveal that the largest embedded pressure is 731.48 GPa and the critical indentation depth δ is 7 nm. Atomic force microscopy (AFM), scanning electron microscopy (SEM), and Auger electron spectroscopy (AES) were used to carry out surface quality detection and analysis of the disk head. Both the formation of black spots on the surface and the removal rate have an important correlation with the size of nanodiamonds. The results demonstrate that an improved removal rate (21 nm·min−1) can be obtained with 100 nm diamonds embedded in the plate.http://dx.doi.org/10.1155/2014/326427 |
| spellingShingle | Xionghua Jiang Zhenxing Chen Joy Wolfram Zhizhou Yang Mechanistic Features of Nanodiamonds in the Lapping of Magnetic Heads The Scientific World Journal |
| title | Mechanistic Features of Nanodiamonds in the Lapping of Magnetic Heads |
| title_full | Mechanistic Features of Nanodiamonds in the Lapping of Magnetic Heads |
| title_fullStr | Mechanistic Features of Nanodiamonds in the Lapping of Magnetic Heads |
| title_full_unstemmed | Mechanistic Features of Nanodiamonds in the Lapping of Magnetic Heads |
| title_short | Mechanistic Features of Nanodiamonds in the Lapping of Magnetic Heads |
| title_sort | mechanistic features of nanodiamonds in the lapping of magnetic heads |
| url | http://dx.doi.org/10.1155/2014/326427 |
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