Numerical Study on Heat Transfer and Lubricant Depletion in a Heat Assisted Magnetic Recording System with Multilayer Disk Structure

Zeng Yan; Xiao Yang Huang; Wei Dong Zhou; Sheng Kai Yu

doi:10.4028/www.scientific.net/AMR.452-453.1384

Paper Titles

Application of a Nonlinear Data-Driven Model to Rapid Design of Disc-Spring Valve Systems
p.1365

Experimental Study on the Adsorption of Heavy Metal Ions with Oceanic Polymetallic Nodules and Cobalt-Rich Crust Leaching Residues
p.1370

Analysis on Flow Behaviors of Stepped Horizontal Well through Multi-Independent Fault Blocks
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Research on the Stress and Strain of Section Steel Reinforced Concrete Beam in Chang Jiang Crossing Campaign Memorial
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Numerical Study on Heat Transfer and Lubricant Depletion in a Heat Assisted Magnetic Recording System with Multilayer Disk Structure
p.1384

Study on Affecting Factors of the Wear Reliability Based on PHM to Aircraft Airfoil’s Slide Rail
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A Computer Disassembly Method Based on Ontology-Case-Based Reasoning
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Effect of Physical Properties on Buckling of Spherical-Cone Diaphragm for Positive Expulsion Tank Based on Orthogonal Test by Finite Element Method
p.1403

Vibration Control of a Nonlinear Rotor System through Electro-Magnetic Bearings
p.1408

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 452-453Numerical Study on Heat Transfer and Lubricant...

Numerical Study on Heat Transfer and Lubricant Depletion in a Heat Assisted Magnetic Recording System with Multilayer Disk Structure

Abstract:

Heat transfer and lubricant depletion in a HAMR system with multilayer disk substrate are numerically simulated in this study. Cases under two types of multilayer disk substrates with different materials on the top layer as well as different laser powers are examined. The results show the significant effects of the material property and the laser power. Compared with pure glass disk substrate, larger thermal conductivity of top-layer material in the multilayer disk substrate causes faster heat conduction and thus substantial reductions in the temperature increase and lubricant depletion on the top surface. Hence it is necessary and important to incorporate the real multilayer structure in modeling heat transfer and lubricant depletion in practical HAMR systems.