[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

Kennedy et al., 1999 - Google Patents

Fractal analysis of hard disk surface roughness and correlation with static and low-speed friction

Kennedy et al., 1999

Document ID
14916236653358842431
Author
Kennedy F
Brown C
Kolodny J
Sheldon B
Publication year

External Links

Snippet

The purpose of this work was to use new scale-sensitive fractal parameters to characterize the surface topography of computer hard disks and to correlate the fractal parameters with measured start-up friction (or stiction) behavior of textured hard disks. The topographies of …
Continue reading at asmedigitalcollection.asme.org (other versions)

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/72—Protective coatings, e.g. antistatic, antifriction
    • G11B5/725—Protective coatings, e.g. antistatic, antifriction containing a lubricant
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8408—Processes or apparatus specially adapted for manufacturing record carriers protecting the magnetic layer
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/60—Fluid-dynamic spacing of heads form record-carriers
    • G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical means
    • G01B5/28—Measuring arrangements characterised by the use of mechanical means for measuring roughness or irregularity of surfaces
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads

Similar Documents

Publication Publication Date Title
Wyant et al. Development of a three-dimensional noncontact digital optical profiler
Bhushan et al. Role of mechanical properties and surface texture in the real area of contact of magnetic rigid disks
Li et al. Effect of humidity on stiction and friction of the head/disk interface
WO1997017695A1 (en) Low friction non-gaussian surface and method of determination of optimum low friction surface parameters
Sinha et al. Wear durability studies of ultra-thin perfluoropolyether lubricant on magnetic hard disks
KR20080102987A (en) Substrate, magnetic recording medium and manufacturing method thereof, and magnetic storage apparatus
Tan et al. A novel textured design for hard disk tribology improvement
EP0230034B1 (en) Perpendicular magnetic recording medium
Yeack-Scranton Novel piezoelectric transducers to monitor head-disk interactions
Kennedy et al. Fractal analysis of hard disk surface roughness and correlation with static and low-speed friction
Tani Observation of PFPE lubricant film on magnetic disk surface by atomic force microscopy
Bhushan et al. Friction/stiction and wear studies of magnetic thin-film disks with two polar perfluoropolyether lubricants
Li et al. The development and implementation of discrete texture for the improvement of tribological performance
Forehand et al. In situ studies of wear mechanisms in magnetic thin-film disks
Khurshudov et al. In situ quantitative analysis of nano-scale lubricant migration at the slider–disk interface
Zhao et al. Effect of environmental humidity on the friction/stiction and durability of lubricated magnetic thin-film disks
Karis et al. Pin‐on‐disk tribology of thin‐film magnetic recording disks
Cha et al. Experimental investigation of AE and friction signals related to the durability of head/disk interface
JP3148783B2 (en) Method for evaluating tribological characteristics of magnetic recording media
Liu et al. Meniscus force modeling and study on the fluctuation of stiction/friction force in CSS test process
US7350400B1 (en) Test method to measure lubricant mobility on a hard drive disk
Tsai et al. Tribological phenomena at the head–disk interface of thin‐film rigid disks
Wang et al. Tribology of laser textured disks with thin overcoat
Zhao et al. Tribological properties and environmental effects of nano and pico sliders on laser textured media
Tambe et al. Durability studies of head–disk interface using padded and load/unload picosliders for magnetic rigid disk drives