대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제24권3호
  • /
  • Pages.477-484
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  • 2000
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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헤드/디스크 인터페이스 내에서 오염 입자의 거동에 관한 수치적 연구

Numerical Investigation of Contamination Particle's Trajectory in a Head/slider Disk Interface

  • 박희성 (연세대학교 대학원 기계공학과) ;
  • 황정호 (연세대학교 기계공학과) ;
  • 좌성훈 (삼성전자 스토리지 사업부)
  • 발행 : 2000.03.01
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초록

Microcontamination caused by particle deposition on the head disk interface threatens the reliability of hard disk drive. Design of slider rail to control contamination becomes an important issue in magnetic recording. In this paper, how particles adhere to the slider and the disk is examined. To investigate accumulation mechanism of the particles, trajectory of the particles in a slider/disk interface is simulated with considering various forces including drag force, gravitational force, Saffman lift force, and electrostatic force. It is found that the charged particles can easily adhere to the slider or disk surface, if an electric field exists between the slider and the disk. It is supposed that the vertical motion of the particles should be related with not only Saffman force but also electrostatic force.

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참고문헌

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