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Proceedings Papers

Experimental Study of Nanoscale Head-Disk Heat Transfer In Heat-Assisted Magnetic Recording

Qilong Cheng, David B. Bogy
Proc. ASME. ISPS2021, ASME 2021 30th Conference on Information Storage and Processing Systems, V001T05A001, June 2–3, 2021
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2021-62275
https://doi.org/10.1115/ISPS2021-62275
View Paper titled, Experimental Study of Nanoscale Head-Disk Heat Transfer In Heat-Assisted Magnetic Recording
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Topics: Disks, Heat, Heat transfer, Magnetic recording, Nanoscale phenomena, Lasers, Temperature, Semiconductor wafers, Heating, Nanoscale heat transfer
Proceedings Papers

Numerical and Experimental Investigation of Nanoscale Heat Transfer Between a Flying Head Over a Rotating Disk

Siddhesh V. Sakhalkar, Qilong Cheng, David B. Bogy
Proc. ASME. ISPS2020, ASME 2020 29th Conference on Information Storage and Processing Systems, V001T05A003, June 24–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2020-1906
https://doi.org/10.1115/ISPS2020-1906
View Paper titled, Numerical and Experimental Investigation of Nanoscale Heat Transfer Between a Flying Head Over a Rotating Disk
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Topics: Nanoscale heat transfer, Rotating disks, Disks, Adhesion, Magnetic recording, Heat transfer, Computer simulation, Failure, Friction, Heat
Proceedings Papers

Experimental Study on Laser-Induced Protrusion in Heat-Assisted Magnetic Recording

Qilong Cheng, Haoyu Wang, Siddhesh V. Sakhalkar, David B. Bogy
Proc. ASME. ISPS2020, ASME 2020 29th Conference on Information Storage and Processing Systems, V001T05A002, June 24–25, 2020
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2020-1903
https://doi.org/10.1115/ISPS2020-1903
View Paper titled, Experimental Study on Laser-Induced Protrusion in Heat-Assisted Magnetic Recording
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Topics: Heat, Lasers, Magnetic recording, Acoustic emissions, Heating, Sensors, Steady state, Temperature, Thermal energy
Proceedings Papers

Thermal Behavior of Magnetoresistive Heads: An Analysis of the Thermal Asperity Problem

Francis E. Kennedy, Li Chen, David B. Bogy
Proc. ASME. TRIB2001, ASME 2001 Symposium on Nanotribology and Nanotechnology for 1Tbit/in2, 73-80, October 21–24, 2001
Publisher: American Society of Mechanical Engineers
Paper No: TRIB-NANO2001-110
https://doi.org/10.1115/TRIB-NANO2001-110
View Paper titled, Thermal Behavior of Magnetoresistive Heads: An Analysis of the Thermal Asperity Problem
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Topics: Air bearings, Cooling, Disks, Fluctuations (Physics), Geometry, Heating, Particulate matter, Signals, Temperature, Thin films
Journal Articles

On the Wave Speed of Thermal Radiation Inside and Near the Boundary of an Absorbing Material

Bair V. Budaev, David B. Bogy
Journal: ASME Journal of Heat and Mass Transfer
Publisher: ASME
Article Type: Research-Article
J. Heat Mass Transfer. March 2020, 142(3): 032801.
Paper No: HT-19-1026
https://doi.org/10.1115/1.4045665
Published Online: January 13, 2020
View Article titled, On the Wave Speed of Thermal Radiation Inside and Near the Boundary of an Absorbing Material
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Topics: Photons, Radiation (Physics), Thermal radiation, Vacuum, Waves, Temperature, Refractive index, Signals, Wavelength, Electromagnetic fields
Proceedings Papers

Numerical and Experimental Investigation of Nanoscale Heat Transfer in the Head-Media Interface During Static Touchdown

Siddhesh V. Sakhalkar, Qilong Cheng, Yuan Ma, Amin Ghafari, David B. Bogy
Proc. ASME. ISPS2019, ASME 2019 28th Conference on Information Storage and Processing Systems, V001T03A003, June 27–28, 2019
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2019-7448
https://doi.org/10.1115/ISPS2019-7448
View Paper titled, Numerical and Experimental Investigation of Nanoscale Heat Transfer in the Head-Media Interface During Static Touchdown
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Topics: Nanoscale heat transfer, Temperature, Disks, Magnetic recording, Computer simulation, Failure, Heat, Heat conduction, Heat transfer coefficients, Magnetic heads
Proceedings Papers

Scalable Plasmonic Nanolithography: Prototype System Design and Construction

Yuan Wang, Mohamed E. Saad, Kang Ni, Yen Chi Chang, Cheng-Wei Chen, Chen Chen, Liang Pan, Tsu Chin Tsao, Adrienne S. Lavine, David B. Bogy, Xiang Zhang
Proc. ASME. MSEC2016, Volume 1: Processing, V001T02A081, June 27–July 1, 2016
Publisher: American Society of Mechanical Engineers
Paper No: MSEC2016-8671
https://doi.org/10.1115/MSEC2016-8671
View Paper titled, Scalable Plasmonic Nanolithography: Prototype System Design and Construction
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Topics: Construction, Design, Engineering prototypes, Nanolithography, Lithography, Metrology, Air bearings, Imaging, Mass production, Nanoscale phenomena
Proceedings Papers

Experimental Investigation of Heat Flux at the Head-Disk Interface in Hard Disk Drives

Yuan Ma, David B. Bogy
Proc. ASME. ISPS2016, ASME 2016 Conference on Information Storage and Processing Systems, V001T01A008, June 20–21, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2016-9550
https://doi.org/10.1115/ISPS2016-9550
View Paper titled, Experimental Investigation of Heat Flux at the Head-Disk Interface in Hard Disk Drives
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Topics: Disks, Heat flux, Heat conduction, Cooling, Heat transfer, Phonons, Temperature programmed desorption, Air bearings, Design, Flow (Dynamics)
Proceedings Papers

Viscoelastic Effects on Lubricant Depletion and Recovery Under Heat-Assisted Magnetic Recording (HAMR) Conditions

Soroush Sarabi, David B. Bogy
Proc. ASME. ISPS2016, ASME 2016 Conference on Information Storage and Processing Systems, V001T01A009, June 20–21, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2016-9578
https://doi.org/10.1115/ISPS2016-9578
View Paper titled, Viscoelastic Effects on Lubricant Depletion and Recovery Under Heat-Assisted Magnetic Recording (HAMR) Conditions
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Topics: Heat, Lubricants, Magnetic recording, Relaxation (Physics), Viscosity, Lasers, Temperature, Viscoelasticity, Disks, Finite element methods
Proceedings Papers

Effect of Functional End-Groups on the Lubricant Recovery After Heat-Assisted Magnetic Recording (HAMR) Writing

Soroush Sarabi, David B. Bogy
Proc. ASME. ISPS2016, ASME 2016 Conference on Information Storage and Processing Systems, V001T01A021, June 20–21, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2016-9624
https://doi.org/10.1115/ISPS2016-9624
View Paper titled, Effect of Functional End-Groups on the Lubricant Recovery After Heat-Assisted Magnetic Recording (HAMR) Writing
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Topics: Heat, Lubricants, Magnetic recording, Temperature, Viscosity, Disks, Lasers, Pressure, Bonding, Coating processes
Journal Articles

Operational Shock Failure Mechanisms in Hard Disk Drives

Liping Li, David B. Bogy
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. July 2014, 136(3): 031901.
Paper No: TRIB-13-1158
https://doi.org/10.1115/1.4027209
Published Online: April 15, 2014
View Article titled, Operational Shock Failure Mechanisms in Hard Disk Drives
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Topics: Disks, Failure mechanisms, Shock (Mechanics)
Journal Articles

Effect of Dimple Offset on the Operational Shock Performance of Small Form Factor Disk Drives

Puneet Bhargava, David B. Bogy
Journal: Journal of Vibration and Acoustics
Publisher: ASME
Article Type: Technical Briefs
J. Vib. Acoust. June 2014, 136(3): 034501.
Paper No: VIB-09-1052
https://doi.org/10.1115/1.4026671
Published Online: March 18, 2014
View Article titled, Effect of Dimple Offset on the Operational Shock Performance of Small Form Factor Disk Drives
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Topics: Disks, Shock (Mechanics), Simulation, Stress, Engineering simulation
Proceedings Papers

Lubricant Flow and Accumulation on the Air Bearing Surface of a Hard Disk Drive

Alejandro Rodriguez-Mendez, David B. Bogy
Proc. ASME. ISPS2013, ASME 2013 Conference on Information Storage and Processing Systems, V001T01A019, June 24–25, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2013-2905
https://doi.org/10.1115/ISPS2013-2905
View Paper titled, Lubricant Flow and Accumulation on the Air Bearing Surface of a Hard Disk Drive
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Topics: Air bearings, Disks, Flow (Dynamics), Lubricants, Corrosion, Horizontal directional drilling, Rotating disks, Stiction, Thin films, Wear
Proceedings Papers

The Effect of Contact Conditions on Demagnetization During Light Sliding Contact

Yuliang Liu, Jun He, Jun He, David B. Bogy, Guangyu Zhang
Proc. ASME. ISPS2013, ASME 2013 Conference on Information Storage and Processing Systems, V001T01A004, June 24–25, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2013-2814
https://doi.org/10.1115/ISPS2013-2814
View Paper titled, The Effect of Contact Conditions on Demagnetization During Light Sliding Contact
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Topics: Density, Disks, Horizontal directional drilling
Proceedings Papers

Multi-Body Modeling Effects on the Head-Disk Interface During Operational Shocks in Hard Disk Drives

Liping Li, David B. Bogy
Proc. ASME. ISPS2013, ASME 2013 Conference on Information Storage and Processing Systems, V001T04A001, June 24–25, 2013
Publisher: American Society of Mechanical Engineers
Paper No: ISPS2013-2809
https://doi.org/10.1115/ISPS2013-2809
View Paper titled, Multi-Body Modeling Effects on the Head-Disk Interface During Operational Shocks in Hard Disk Drives
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Topics: Disks, Modeling, Shock (Mechanics), Horizontal directional drilling, Air bearings, Actuators, Manufacturing, Stability
Proceedings Papers

A Thermo-Mechanical Finite Element Analysis of Light Sliding Contact at the Head-Disk Interface

Yuliang Liu, Jia Lou, David B. Bogy, Guangyu Zhang
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 335-337, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61063
https://doi.org/10.1115/IJTC2012-61063
View Paper titled, A Thermo-Mechanical Finite Element Analysis of Light Sliding Contact at the Head-Disk Interface
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Topics: Disks, Finite element analysis, Thermomechanics, Temperature, Magnetic recording, Aluminum, Corners (Structural elements), Deformation, Finite element model, Friction
Proceedings Papers

Flying Height Control Using Dual Thermal Protrusions in Heat Assisted Magnetic Recording (HAMR)

Shaomin Xiong, Liping Li, David B. Bogy
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 339-341, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61083
https://doi.org/10.1115/IJTC2012-61083
View Paper titled, Flying Height Control Using Dual Thermal Protrusions in Heat Assisted Magnetic Recording (HAMR)
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Topics: Heat, Magnetic recording, Disks, Computer simulation, Control systems, Density, Feedback, Lasers, Storage
Proceedings Papers

Lubricant Flow and Evaporation Model for Heat Assisted Magnetic Recording Systems Including Reactive End-Group Effects and Thin-Film Viscosity

Joanna E. Bechtel, David B. Bogy
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 347-349, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61167
https://doi.org/10.1115/IJTC2012-61167
View Paper titled, Lubricant Flow and Evaporation Model for Heat Assisted Magnetic Recording Systems Including Reactive End-Group Effects and Thin-Film Viscosity
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Topics: Evaporation, Flow (Dynamics), Heat, Lubricants, Magnetic recording, Thin films, Viscosity, Pressure, Disks, Film thickness
Proceedings Papers

Local Adaptive Multi-Grid Control Volume Method for the Air Bearing Problem in Hard Disk Drives

Liping Li, David B. Bogy
Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 185-187, October 7–10, 2012
Publisher: American Society of Mechanical Engineers
Paper No: IJTC2012-61118
https://doi.org/10.1115/IJTC2012-61118
View Paper titled, Local Adaptive Multi-Grid Control Volume Method for the Air Bearing Problem in Hard Disk Drives
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Topics: Air bearings, Disks, Algorithms, Simulation, Stability, Steady state
Journal Articles

A Local Adaptive Multigrid Control Volume Method for the Air Bearing Problem in Hard Disk Drives

Liping Li, David B. Bogy
Journal: Journal of Tribology
Publisher: ASME
Article Type: Research-Article
J. Tribol. July 2013, 135(3): 032001.
Paper No: TRIB-12-1127
https://doi.org/10.1115/1.4023804
Published Online: March 28, 2013
View Article titled, A Local Adaptive Multigrid Control Volume Method for the Air Bearing Problem in Hard Disk Drives
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Topics: Air bearings, Disks, Geometry, Pressure