Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
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A Tribological Investigation on Laser Textured Disk and Mechanically Textured Disk of Computer Hard Disk Drive

컴퓨터 하드디스크 드라이브의 레이저 텍스쳐 디스크와 미케니칼 텍스쳐 디스크의 마모거동에 관한 연구

  • Kim, Woo-Seok (School of Mechanical Engineering, Graduate School, Yeungnam University) ;
  • Kim, Do-Hyung (School of Mechanical Engineering, Graduate School, Yeungnam University) ;
  • Hwang, Pyung (School of Mechanical Engineering, Yeungnam University) ;
  • Kim, Jang-Kyo (Department of Mechanical Engineering, The Hong Kong University of Science and Technology)
  • 김우석 (영남대학교 대학원 기계공학부) ;
  • 김도형 (영남대학교 대학원 기계공학부) ;
  • 황평 (영남대학교 기계공학부) ;
  • 김장교 (홍콩과학기술대학교 기계공학부)
  • Published : 1998.10.01
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Abstract

Tribological investigation of ultra thin film magnetic storage disks which have two different kinds of start/stop zone of laser textured bump disk and mechanically textured disk for before CSS test and after CSS test. To measure surface roughness, height reduction before/after CSS test and obtain accurate topographies, AFM(Atomic Force Microscope) which is most powerful recently has been used. The result of statistical analysis showed that both laser textured bump height and mechanically textured zone height have been reduced about 4~7nm after 15000 cycle CSS test. Using commercial Nano-Indenter, ramping load scratch test has been performed to investigate friction characteristic for laser textured zone and mechanically textured zone before/after CSS test.

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