|
|||||
|
|
Contact between a thermal flying height control slider and a disk asperity |
|
| Authors: | Wenping Song Andrey Ovcharenko Min Yang Hao Zheng Frank E. Talke |
| Affiliation: | 1. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, China 2. Center for Magnetic Recording Research, University of California, San Diego, CA, USA 3. Western Digital Corporation, San Jose, CA, USA |
| Abstract: | Contact between a thermal flying height control slider and an asperity on a disk is investigated using finite element analysis. The finite element model developed accounts for transient elastic–plastic deformation and heat generation due to frictional heating. Plastic deformation and temperature rise of the read/write element are determined as a function of flying height of the slider, location of the read/write element as well as material properties of typical disk asperities. The model shows good agreement with experimental data. Significant plastic deformation and temperature rise were observed in the shield and alumina regions of the slider. Hard and stiff disk asperities, such as alumina asperities, result in more damage to the slider than soft and compliant nickel-phosphorus ones. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |