Search Results - "Jhon, M.S"

Shear stress analysis of a semiconducting polymer based electrorheological fluid system by Cho, M.S., Choi, H.J., Jhon, M.S.

“…The electrorheological characteristics of a fluid system with semiconducting poly(naphthalene quinone) (PNQR) particles, synthesized from a Friedel–Craft…”
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Atomic layer etching of Al2O3 using BCl3/Ar for the interface passivation layer of III–V MOS devices by Min, K.S., Kang, S.H., Kim, J.K., Jhon, Y.I., Jhon, M.S., Yeom, G.Y.

“…Concept of atomic layer etching (ALET) of Al2O3. •The atomic layer etching of Al2O3 as the interface passivation layer (IPL) has been studied.•The etch depth…”
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Encapsulation of spherical iron-particle with PMMA and its magnetorheological particles by Cho, M.S., Lim, S.T., Jang, I.B., Choi, H.J., Jhon, M.S.

“…Composite magnetic particles (CMP) with carbonyl iron (CI) core and poly(methyl methacrylate) shell were prepared by an in-situ dispersion polymerization…”
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Magnetorheological characterization of carbonyl iron-organoclay suspensions by Sung Taek Lim, Hyoung Jin Choi, Jhon, M.S.

“…Carbonyl-iron (CI)-based magnetorheological (MR) fluid containing submicron-sized additive particles was prepared. The flow behavior at a steady shear mode was…”
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The Static and Dynamic Responses of Binary Mixture Perfluoropolyether Lubricant Films- Molecular Structural Effects by Pil Seung Chung, Hakhee Park, Jhon, M.S.

“…Static and dynamic properties of single-component perfluoropolyether (PFPE) lubricants have been studied for optimal lubricant selection by examining the…”
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Effects of Molecular Structure on the Conformation and Dynamics of Perfluoropolyether Nanofilms by Haigang Chen, Qian Guo, Jhon, M.S.

“…With the increase of areal density of magnetic recording, several new perfluoropolyether (PFPE) lubricants, including A20H, DDPA-S, and Ztetraol multidentate,…”
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Simulation of micro- and nano-scale flows via the lattice Boltzmann method by Zhou, Y., Zhang, R., Staroselsky, I., Chen, H., Kim, W.T., Jhon, M.S.

“…We use the lattice Boltzmann method (LBM) for analysis of high and moderate Knudsen number phenomena. Simulation results are presented for microscale Couette…”
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Magnetorheology of carbonyl-iron Suspensions with submicron-sized filler by Sung Taek Lim, Min Seong Cho, Jang, I.B., Hyoung Jin Choi, Jhon, M.S.

“…We added novel submicron-sized particles into carbonyl-iron (CI) suspension to improve the sedimentation problem. The added string-like graphite nano-fiber…”
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The Viscoelastic Behavior of Perfluoropolyether Lubricants by Qian Guo, Jhon, M.S.

“…Molecular rheology of perfluoropolyether (PFPE) systems can be particularly important in designing effective lubricants that control the friction and wear in…”
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Langmuir Slip Model for Air Bearing Simulation Using the Lattice Boltzmann Method by Hyung Min Kim, Dehee Kim, Woo Tae Kim, Pil Seung Chung, Jhon, M.S.

“…The lattice Boltzmann method (LBM) is utilized to simulate the nanoscale flow physics of air bearings in the head-disk interface. In the high Knudsen number…”
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Ultraviolet Bonding of PFPE With Carbon Overcoat: Surface Energy and Spreading by Haigang Chen, Pil Seung Chung, Jhon, M.S.

“…Ultraviolet (UV) irradiation effects on the functional perfluoropolyether (PFPE), i.e., Ztetraol films, were investigated by studying the bonded film thickness…”
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Binary Mixture Film of Perfluoropolyether Lubricants by Pil Seung Chung, Haigang Chen, Jhon, M.S.

“…It has become more and more difficult to find a single lubricant meeting all the requirements for ultra-small head-media spacing hard disk drives (HDDs)…”
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A Spreading Study of Lubricant Films via Optical Surface Analyzer and Molecular Dynamics by Qian Guo, Lei Li, Yiao-Tee Hsia, Jhon, M.S.

“…The spreading capability of perfluoropolyether (PFPE) films is critical to handling the intermittent contacts, as well as the long-term reliability of hard…”
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Calculation of Disjoining Pressure for Lubricant Films Via Molecular Simulation by Izumisawa, S., Jhon, M.S.

“…Disjoining pressure of polymeric liquid films on solid wall and surface tension of the films suspended in vapor are examined via molecular dynamics…”
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Stability Model for a Lubricant Film With a Slider by Izumisawa, S., Jhon, M.S.

“…The thermodynamic stability model of perfluoropolyether (PFPE) lubricants is developed and extended to include the interaction between surfaces of slider and…”
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Transport properties of nanoscale lubricant films by Qian Guo, Izumisawa, S., Jhon, M.S., Yiao-Tee Hsia

“…Off-lattice molecular dynamics simulations based on the coarse-grained bead-spring model via the Langevin equation were performed to simulate the dynamics of a…”
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Lifshitz-van der Waals and Lewis Acid-Base Approach for Analyzing Surface Energy of Molecularly Thin Lubricant Films by Haigang Chen, Lei Li, Jones, P.M., Yiao-Tee Hsia, Jhon, M.S.

“…The dispersive and polar components of surface energy, which are typically obtained from the two-liquid geometric method through contact angle measurement,…”
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Spinning Effects on the Spreading Profiles in PFPE Nanofilms by Haigang Chen, Dehee Kim, Hakhee Park, Pil Seung Chung, Jhon, M.S.

“…As fly height of slider in head-disk interface (HDI) decreases with increasing areal density, the intermittent contacts between head and disk during operation…”
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Humidity Effects on the Relaxation of Perfluoropolyether Lubricant Films by Haigang Chen, Qian Guo, Lei Li, Yiao-Tee Hsia, Jhon, M.S.

“…Humidity effects on the relaxation of molecularly thin lubricant films were studied via examining the bonded fraction and surface energy of fresh dip-coated…”
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Thermal Modeling of a Multilayered Film via Taylor Series Expansion- and Least Squares-Based-Lattice Boltzmann Method by Ghai, S.S., Pil Seung Chung, Woo Tae Kim, Amon, C.H., Jhon, M.S.

“…An enhanced lattice Boltzmann scheme, Taylor series expansion- and least squares-based-lattice Boltzmann method (TLLBM), is adopted to simulate transient…”
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