College

College of Engineering (COE)

Date of Last Revision

2020-05-19 13:41:57

Major

Mechanical Engineering - Cooperative Education

Honors Course

4600:497

Number of Credits

4

Degree Name

Bachelor of Science

Date of Expected Graduation

Spring 2020

Abstract

The process known as heat-assisted magnetic recording is an advanced data storage technology which can be applied to develop higher data-density storage in next generation hard disk drives. Such drives are instrumental in the utility of server storage devices and the storage of large-data projects such as that of the Event Horizon Telescope array. During this process, data is written to a magnetic surface by means of laser heating; the coercivity of the magnetic medium is reduced by the heating of this surface, and within this heating period, data is able to be written to the disk in a smaller area than would otherwise be possible. During this heating process, the lubricant on the disk can evaporate because of the high temperatures generated by the laser. This can lead to an accumulation on the slider which may then return to the disk after the heating process has completed. This variation in the volume of lubricant present on the disk may reduce the overall efficiency of the process. To study these effects, the lubricant distribution and the temperature distribution on the disk and slider surfaces are evaluated with the help of lubricant film simulation made possible by finite element analysis software.

Research Sponsor

Dr. Shao Wang

First Reader

Dr. Graham Kelly

Second Reader

Dr. Yogesh Singh

Honors Faculty Advisor

Dr. Ajay Mahajan

Included in

Engineering Commons

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