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Proceedings Papers

MEMS-Based Micro Probe Incorporating Electrostatic Actuator Towards Friction Force Microscopy With Accurate Gap Control

Kenji Fukuzawa, Mikito Takahashi, Yusuke Hori, Shintaro Itoh, Hedong Zhang

Proc. ASME. ISPS-MIPE2018, ASME-JSME 2018 Joint International Conference on Information Storage and Processing Systems and Micromechatronics for Information and Precision Equipment, V001T08A004, August 29–30, 2018

Paper No: ISPS-MIPE2018-8542

DOI: https://doi.org/10.1115/ISPS-MIPE2018-8542

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Topics: Electrostatic actuators, Friction, Microelectromechanical systems, Microscopy, Probes, Lubrication, Actuators, Force measurement, Microscopes

Proceedings Papers

Measurement of Temperature Dependence of Lubricant Viscosity in Nano Gaps by Fiber Wobbling Method Combined With Laser Heating

Shintaro Itoh, Kento Kamiya, Kenji Fukuzawa, Hedong Zhang

Paper No: ISPS-MIPE2018-8548

DOI: https://doi.org/10.1115/ISPS-MIPE2018-8548

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Topics: Fibers, Heating, Lasers, Lubricants, Temperature measurement, Viscosity, Lubricating oils, Lubrication, Design, Durability

Proceedings Papers

Simulating Surface Forces Between Iron Oxide Surfaces Immersed in Methyl Oleate Using Molecular Dynamics

William W. F. Chong, Hedong Zhang

Paper No: ISPS-MIPE2018-8524

DOI: https://doi.org/10.1115/ISPS-MIPE2018-8524

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Topics: Iron, Molecular dynamics, Stress, Simulation, Separation (Technology), Bearings, Crystal structure, Density, Molecular dynamics simulation, Simulation models

Proceedings Papers

Coarse-Grained Molecular Dynamics Simulation of Fatty Acid Additives in Lubricating Oil Sheared by Corrugated Solid Surfaces

Hedong Zhang, Sho Washio, Kenji Fukuzawa, Shintaro Itoh

Paper No: ISPS-MIPE2018-8543

DOI: https://doi.org/10.1115/ISPS-MIPE2018-8543

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Topics: Lubricating oils, Molecular dynamics simulation, Atoms, Boundary lubrication, Desorption, Engineering simulation, Friction, Molecular dynamics, Shear (Mechanics), Simulation

Proceedings Papers

Simultaneous Measurements of Friction Forces and Contact Areas During Shearing of Nanometer-Thick Liquid Lubricant Films

Shintaro Itoh, Takumi Mizuno, Yusuke Norizuki, Kenji Fukuzawa, Hedong Zhang

Proc. ASME. IJTC2012, ASME/STLE 2012 International Joint Tribology Conference, 25-27, October 7–10, 2012

Paper No: IJTC2012-61154

DOI: https://doi.org/10.1115/IJTC2012-61154

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Topics: Die cutting, Friction, Lubricants, Shearing (Deformation), Probes, Fibers, Mechanical properties, Shear (Mechanics), Deflection, Design

Proceedings Papers

Quantification of Friction Force for Dual-Axis Probe Friction Force Microscope

Hiroaki Amakawa, Kenji Fukuzawa, Mitsuhiro Shikida, Hedong Zhang, Shitaro Itoh

Proc. ASME. IJTC2009, ASME/STLE 2009 International Joint Tribology Conference, 39-41, October 19–21, 2009

Paper No: IJTC2009-15241

DOI: https://doi.org/10.1115/IJTC2009-15241

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Topics: Friction, Microscopes, Probes, Calibration, Torsion, Cantilevers, Deflection

Proceedings Papers

Nanorheological Measurement of Monolayer Lubricant Films Using the Oscillating Optical Fiber Probe

Yuya Hamamoto, Shintaro Itoh, Kenji Fukuzawa, Hedong Zhang

Proc. ASME. IJTC2008, STLE/ASME 2008 International Joint Tribology Conference, 689-691, October 20–22, 2008

Paper No: IJTC2008-71138

DOI: https://doi.org/10.1115/IJTC2008-71138

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Topics: Lubricants, Optical fiber, Probes, Fibers, Shear (Mechanics)

Proceedings Papers

Temperature Dependence of Viscoelasticity of PFPE Lubricant Confined in Nanometer-Sized Gaps

Shintaro Itoh, Kenji Fukuzawa, Yuya Hamamoto, Hedong Zhang

Proc. ASME. IJTC2008, STLE/ASME 2008 International Joint Tribology Conference, 697-699, October 20–22, 2008

Paper No: IJTC2008-71169

DOI: https://doi.org/10.1115/IJTC2008-71169

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Topics: Lubricants, Temperature effects, Viscoelasticity, Elasticity, Fibers, Mechanical admittance, Shear (Mechanics), Solidification, Viscosity

Proceedings Papers

Detection of the Asperity Contact Between Sliding Surfaces by Monitoring the Excitation of Resonant Oscillation Using the Fiber Wobbling Method

Shintaro Itoh, Kenji Fukuzawa, Yuya Hamamoto, Hedong Zhang, Yasunaga Mitsuya

Proc. ASME. IJTC2007, ASME/STLE 2007 International Joint Tribology Conference, Parts A and B, 677-679, October 22–24, 2007

Paper No: IJTC2007-44222

DOI: https://doi.org/10.1115/IJTC2007-44222

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Topics: Disks, Excitation, Fibers, Lubricants, Lubrication, Magnetic heads, Magnetic recording, Oscillations, Resonance, Viscoelasticity

Proceedings Papers

Spreading Characteristics of Monolayer Lubricant Film on Surfaces With Lube Textures

Hedong Zhang, Yasunaga Mitsuya, Natsuko Fukuoka, Kenji Fukuzawa

Proc. ASME. TRIB2003, Magnetic Storage Symposium: Frontiers of Magnetic Hard Disk Drive Tribology and Technology, 77-83, October 26–29, 2003

Paper No: 2003-TRIB-341

DOI: https://doi.org/10.1115/2003-TRIB-341

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Topics: Lubricants, Texture (Materials), Disks, Bonding, Diffusion (Physics), Film thickness, Surface energy, Ultraviolet radiation

Proceedings Papers

Direct Visualization of Molecularly Thin Lubricant Films on Magnetic Disks by Ellipsometric Microscopy With a White Light Source

Kenji Fukuzawa, Akira Nakada, Yasunaga Mitsuya, Hedong Zhang

Proc. ASME. TRIB2004, ASME/STLE 2004 International Joint Tribology Conference, Parts A and B, 1433-1439, October 24–27, 2004

Paper No: TRIB2004-64070

DOI: https://doi.org/10.1115/TRIB2004-64070

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Topics: Disks, Light sources, Lubricants, Microscopy, Visualization, Microscopes, Resolution (Optics), Lasers, Wavelength, Design

Proceedings Papers

Stiffness and Damping of Molecularly Thin PFPE Lubricant Bridging Between Magnetic Disk and Diamond Probe Tip

Yasunaga Mitsuya, Yasuji Ohshima, Hedong Zhang, Kei Aoyama, Toshiyuki Kawai, Kenji Fukuzawa

Proc. ASME. WTC2005, World Tribology Congress III, Volume 1, 679-680, September 12–16, 2005

Paper No: WTC2005-63058

DOI: https://doi.org/10.1115/WTC2005-63058

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Topics: Damping, Diamonds, Disks, Lubricants, Probes, Stiffness, Bridges (Structures), Elastic constants, Elongation, Regression analysis

Proceedings Papers

Simulations for Nanoscale Meniscus Formation and Rupture by Using Molecular Dynamics

Susumu Ogata, Yasunaga Mitsuya, Hedong Zhang, Kenji Fukuzawa

Proc. ASME. WTC2005, World Tribology Congress III, Volume 2, 769-770, September 12–16, 2005

Paper No: WTC2005-63607

DOI: https://doi.org/10.1115/WTC2005-63607

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Topics: Elongation, Engineering simulation, Molecular dynamics, Nanoscale phenomena, Rupture, Simulation

Proceedings Papers

A Simulation Method for Spreading Dynamics of Molecularly Thin Lubricant Films on Magnetic Disks Using Bead-Spring Model

Yoichi Tagaya, Yasunaga Mitsuya, Susumu Ogata, Hedong Zhang, Kenji Fukuzawa

Proc. ASME. WTC2005, World Tribology Congress III, Volume 1, 793-794, September 12–16, 2005

Paper No: WTC2005-64393

DOI: https://doi.org/10.1115/WTC2005-64393

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Topics: Disks, Dynamics (Mechanics), Lubricants, Simulation, Springs, Precipitation, Diffusion (Physics)

Proceedings Papers

Comparisons of Friction Characteristics of a Lightly Loaded Pin Sliding Over Magnetic Disks Coated With Polar and Non-Polar PFPE Lubricants

Yinbo He, Yasunaga Mitsuya, Hedong Zhang, Kenji Fukuzawa

Proc. ASME. WTC2005, World Tribology Congress III, Volume 1, 795-796, September 12–16, 2005

Paper No: WTC2005-64395

DOI: https://doi.org/10.1115/WTC2005-64395

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Topics: Disks, Friction, Lubricants, Carbon, Diamonds, Film thickness, Glass, Molecular weight, Rotating disks

Proceedings Papers

Depletion and Replenishment of Molecularly Thin Lubricant on Diamond-Like Carbon Surface of Magnetic Disks

Yasunaga Mitsuya, Hedong Zhang, Fumihiro Hayakawa, Junichi Ohgi, Kenji Fukuzawa

Proc. ASME. IJTC2006, Part B: Magnetic Storage Tribology; Manufacturing/Metalworking Tribology; Nanotribology; Engineered Surfaces; Biotribology; Emerging Technologies; Special Symposia on Contact Mechanics; Special Symposium on Nanotribology, 855-861, October 23–25, 2006

Paper No: IJTC2006-12086

DOI: https://doi.org/10.1115/IJTC2006-12086

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Topics: Carbon, Diamonds, Disks, Lubricants, Diffusion (Physics), Film thickness, Flow (Dynamics), Glass

Proceedings Papers

Quantification of the Surface Morphology of Lubricant Films With Polar End Groups Using Molecular Dynamics Simulation: Periodic Changes in Morphology Depending on Film Thickness

Susumu Ogata, Hedong Zhang, Kenji Fukuzawa, Yasunaga Mitsuya

Paper No: IJTC2006-12106

DOI: https://doi.org/10.1115/IJTC2006-12106

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Topics: Film thickness, Lubricants, Molecular dynamics simulation, Disks, Intermolecular forces, Polymers, Probes, Springs, Surface roughness

Journal Articles

Quantification of the Surface Morphology of Lubricant Films With Polar End Groups Using Molecular Dynamics Simulation: Periodic Changes in Morphology Depending on Film Thickness

Susumu Ogata, Hedong Zhang, Kenji Fukuzawa, Yasunaga Mitsuya

J. Tribol. April 2008, 130(2): 022301.

DOI: https://doi.org/10.1115/1.2842297

Published Online: March 13, 2008

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Topics: Film thickness, Lubricants, Polymers, Molecular dynamics simulation, Surface roughness

Journal Articles

Stiffness and Damping of Thin PFPE Lubricant Bridging Between Magnetic Disk and Diamond Probe Tip

Yasunaga Mitsuya, Yasuji Ohshima, Hedong Zhang, Kei Aoyama, Toshiyuki Kawai, Kenji Fukuzawa

J. Tribol. October 2007, 129(4): 720–728.

DOI: https://doi.org/10.1115/1.2768070

Published Online: May 16, 2007

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Topics: Bridges (Structures), Damping, Disks, Elongation, Lubricants, Probes, Vibration, Stiffness, Elastic constants, Diamonds

Journal Articles

Spreading Characteristics of Monolayer Lubricant Films on Surfaces With Lube Textures

Hedong Zhang, Yasunaga Mitsuya, Natsuko Fukuoka, Kenji Fukuzawa

J. Tribol. January 2005, 127(1): 164–170.

DOI: https://doi.org/10.1115/1.1843828

Published Online: February 7, 2005

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Topics: Diffusion (Physics), Disks, Lubricants, Surface energy, Texture (Materials), Ultraviolet radiation, Irradiation (Radiation exposure), Film thickness

Journal citation

NARROW

MEMS-Based Micro Probe Incorporating Electrostatic Actuator Towards Friction Force Microscopy With Accurate Gap Control

Measurement of Temperature Dependence of Lubricant Viscosity in Nano Gaps by Fiber Wobbling Method Combined With Laser Heating

Simulating Surface Forces Between Iron Oxide Surfaces Immersed in Methyl Oleate Using Molecular Dynamics

Coarse-Grained Molecular Dynamics Simulation of Fatty Acid Additives in Lubricating Oil Sheared by Corrugated Solid Surfaces

Simultaneous Measurements of Friction Forces and Contact Areas During Shearing of Nanometer-Thick Liquid Lubricant Films

Quantification of Friction Force for Dual-Axis Probe Friction Force Microscope

Nanorheological Measurement of Monolayer Lubricant Films Using the Oscillating Optical Fiber Probe

Temperature Dependence of Viscoelasticity of PFPE Lubricant Confined in Nanometer-Sized Gaps

Detection of the Asperity Contact Between Sliding Surfaces by Monitoring the Excitation of Resonant Oscillation Using the Fiber Wobbling Method

Spreading Characteristics of Monolayer Lubricant Film on Surfaces With Lube Textures

Direct Visualization of Molecularly Thin Lubricant Films on Magnetic Disks by Ellipsometric Microscopy With a White Light Source

Stiffness and Damping of Molecularly Thin PFPE Lubricant Bridging Between Magnetic Disk and Diamond Probe Tip

Simulations for Nanoscale Meniscus Formation and Rupture by Using Molecular Dynamics

A Simulation Method for Spreading Dynamics of Molecularly Thin Lubricant Films on Magnetic Disks Using Bead-Spring Model

Comparisons of Friction Characteristics of a Lightly Loaded Pin Sliding Over Magnetic Disks Coated With Polar and Non-Polar PFPE Lubricants

Depletion and Replenishment of Molecularly Thin Lubricant on Diamond-Like Carbon Surface of Magnetic Disks

Quantification of the Surface Morphology of Lubricant Films With Polar End Groups Using Molecular Dynamics Simulation: Periodic Changes in Morphology Depending on Film Thickness

Quantification of the Surface Morphology of Lubricant Films With Polar End Groups Using Molecular Dynamics Simulation: Periodic Changes in Morphology Depending on Film Thickness

Stiffness and Damping of Thin PFPE Lubricant Bridging Between Magnetic Disk and Diamond Probe Tip

Spreading Characteristics of Monolayer Lubricant Films on Surfaces With Lube Textures

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