Advanced Materials & Manufacturing – Page 219

Nanotribology and Lubrication at Nanoscale: Molecular Dynamics Simulation Studies

Jabbarzadeh A., The University of Sydney, AU

Increasing technological advances to make devices and processes at the nanoscale, have made it necessary to effectively minimize the friction and adhesion of moving mechanical assemblies, such as those in micro- or nano-electromechanical (MEMS/NEMS) devices. [...]

Structural conformations of ATP/Mg:ATP and Mg2+ coordinating dynamics in motor proteins

Bojovschi A., Liu M.S., Sadus R.J., Swinburne University of Technology, AU

ATP-powered motor proteins are driven by ATP hydrolysis. The conformational dynamics of ATP is functionally crucial for the steady operation of motor proteins. In this paper, we present conformational diversity of the ATP/Mg:ATP and coordinating [...]

Rapid oxidation and self-heating model of aluminum spherical nanoparticles

Zyskin M., Martirosyan K.S., University of Texas at Brownsville, US

Nanostructured highly-exothermic reactive mixtures, referred to as Nanoenergetic Materials (NM) or Metastable Intermolecular Composites (MIC), may release energy much faster than conventional energetic materials. The size reduction of reactant powders such as aluminum from micro- [...]

Controlling Oxidation Reaction on Platinum by Spin Manipulation

Sison Escaño M.C., Nguyen T.Q., Nakanishi H., Kasai H., Osaka University, JP

Oxidation of metal surface is of outstanding practical importance in microelectronics, energy conversion systems and environmental devices. As an oxidation catalyst, platinum (Pt) is widely used in chemical and automotive industries. Thus far, the dissociative [...]

Quantum Chemical Molecular Dynamics Study of Oxidation Process on Fe-Cr Alloy Surfaces in High Temperature Water

Suzuki K., Miura H., Tohoku University, JP

Environmentally assisted cracking (EAC) has become the critical issue that dominates the lifetime of various metallic materials such as stainless steels used under harsh operating conditions. In the EAC process, chemical reaction of the metal [...]

Modeling & Simulation at the Nanoscale

Research on Non-linear Vibration in Micro-machined Resonant Accelerometer

Shuming Z., Yunfeng L., Fan W., Jingxin D., Tsinghua University, CN

This paper analyses the non-linear vibration of the Silicon Oscillating Accelerometer (SOA) by system modeling and simulation, and the optimization designation to weaken the influence of the nonlinear vibration are proposed. With the decreasing of [...]

Finite Element Modeling of MEMS Piezoelectric Energy Harvester

Beker L., Muhtaroglu A., Ozguven H.N., Kulah H., Middle East Technical University, TR

This paper reports an improved method for modeling and optimization of a MEMS piezoelectric energy harvester (PEH) for a desired frequency range with maximum voltage output using finite element method. Single-degree-of-freedom and distributed parameter modeling [...]

A Numerical Study on THZ-Wave Generation and Detection of Metal-Oxide-Semiconductor Field-effect Transistor

Wang C., Mou X., He H., He J., Ye Y., He H., He J., Cao Y., PKU-HKUST Shenzhen-Hongkong Institution, CN

A numerical method is developed in this paper to simulate FET-based THz wave generation and detection. The method is derived directly from the hydrodynamic equations and implemented in Matlab coding. Simulation results are compared with [...]

Switching and Release Dynamics of an Electrostatically Actuated MEMS Switch under the influence of Squeeze-film Damping

Shekhar S., Vinoy K.J., Ananthasuresh G.K., Indian Institute of Science, IN

This paper reports analytical modeling, simulation and experimental validation for switching and release times of an electrostatically actuated micromachined switch. Presented work is an extension of our earlier work [1] that analytically argued, and numerically [...]