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RISError Analysis of Head-Disk Spacing Measurements Made by Using Optical Interferometry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An analytical and simplified method was developed for predicting error propagation encountered when optically measuring head-to-medium spacing in magnetic disk drives. Two kinds of optical interferences ...
Measurement of Velocity-Dependent Adhesive Force Exerted on Magnetic Disk Using Micro-Probe of SPM
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel method for measuring the velocity-dependent adhesive force exerted on a magnetic disk has been developed using the micro-probe of a scanning probe microscope (SPM). The deformation of ...
Transient Response Solution Applying ADI Scheme to Boltzmann Flow-Modified Reynolds Equation Averaged With Respect to Surface Roughness
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical calculation methodology applying the alternating direction implicit (ADI) scheme is derived for the solution to the averaged Reynolds equation in volving flow factors resulting from ...
Derivation of Rarefaction-Modified Reynolds Equation Considering Porosity of Thin Lubricant Film
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new lubrication model is derived for solving ultra-thin gas lubrication problems encountered in the analysis of a magnetic head slider flying over a magnetic disk coated with giant-molecule ...
Two-Dimensional Measurements of Lubricant Spreading on Diamond-Like-Carbon Surface Using Image Processing on Fringe Patterns Formed by Michelson Interferometry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A Michelson interferometer based on the Linnik microscope configuration has been constituted and applied to the measurement of lubricant spreading on diamond-like-carbon (DLC) surface. Performing ...
Spreading Characteristics of Molecularly Thin Lubricant on Surfaces With Groove-Shaped Textures: Monte Carlo Simulation and Measurement Using PFPE Film
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Spreading characteristics of molecularly thin lubricant on a grooved surface have been studied numerically by Monte Carlo simulations and compared with measurements obtained by perfluoropolyether ...
Spreading Characteristics of Molecularly Thin Lubricant on Surfaces With Groove-Shaped Textures: Effects of Molecular Weight and End-Group Functionality
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effects of molecular weight and end-group functionality on spreading of molecularly thin perfluoropolyether (PFPE) film over solid surfaces with groove-shaped textures have been studied by experiments ...
A Numerical Simulation Method to Evaluate the Static and Dynamic Characteristics of Flying Head Sliders on Patterned Disk Surfaces
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To quantitatively predict the static and dynamic characteristics of a flying head slider on a patterned disk surface, the “mixed averaging method” has been successfully applied to the molecular ...
Measurement of Adhesion Force and Elongation of Molecularly Thin Lubricant by Using Transient Response of SPM Cantilever
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A novel method for identifying the adhesion force and dynamic elongation of molecularly thin lubricant coated over a DLC (diamond-like-carbon) surface was developed, in which those values were ...
Dynamic Analysis of the Rarefaction-Modified Reynolds Equation Considering Porosity of Thin Liquid Lubricant Film
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A rarefaction-modified Reynolds equation was derived to solve dynamic problems of a thin liquid lubricant film coated on a sliding surface. Applying the perturbation method, a calculation procedure ...