Browsing Mechanical Engineering by Title
Now showing items 282-301 of 465
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Mechanical and wear properties of ultrafine-grained pure Ti produced by multi-pass equal-channel angular extrusion
(Elsevier, 2009-08-20)In this study, pure grade 2 Ti was processed via equal-channel angular extrusion (ECAE) for 8 and 12 passes following route-E at 300 °C. After processing, the microstructural evolution, tensile properties and wear behavior ... -
Mechanical behavior of constrained groove pressed stainless steel and pure zinc
(Trans Tech Publications Ltd, 2021)Constrained groove pressing (CGP), a severe plastic deformation method, has been implemented on AISI 304 and commercially pure zinc samples in the present work. Four CGP passes were successfully applied to both materials ... -
Metal CMP optimization based on chemically formed thin film analysis
(The Electrochemical Society, 2009)The conventional demands for development in semiconductor industry are changing as the Moore's Law is approaching to its limits. This paper demonstrates a theoretical optimization approach for the planarization of metal ... -
Metal oxide nano film characterization for CMP optimization
(ECS, 2013)This paper focuses on the planarization of metallic films in microelectronics manufacturing by CMP through investigation of metal oxide thin films forming as a result of the chemical component of the process. Tungsten ... -
Metal oxide thin film characterization for new generation chemical mechanical planarization development
(The Electrochemical Society, 2016)This study targets to create a basis for the process development in the new generation semiconductor industry dealing with atomic scale devices. We focus on the CMP process development as it is used for the current and ... -
A methodology to design multi-axis test rigs for vibration and durability testing using frequency response functions
(2017-06-25)The multi-axis simulators are designed for experimental verification of the safe functioning of large components and subsystems under real world customer usage in vibration and durability testing. Transformation of the ... -
A methodology to optimize damping pad application on a complex structure using finite element models
(International Institute of Acoustics and Vibration, IIAV, 2018)Passive constrained layer damping patches have been extensively used for vibration and acoustics applications due to their capability to dissipate vibrational energy into heat. In this study, we perform an optimization ... -
Micro-hydrodynamic interaction mechanisms in tio2 nano-colloidal suspensions with different particle size distributions: the effects of electrostatic and steric stabilization
(Bangladesh University of Engineering and Technology, 2020)Micro-hydrodynamic interaction mechanisms of colloidal particles have important effects on the intrinsic properties and behavior of nano-colloidal suspensions, which in turn affect their different potential applications. ... -
Microstructural examination of black seawater mixed sulfate-resistant cement concrete
(ASCE, 2024-01-01)The use of seawater as the mix water has been thought to be inevitable for the near future as a result of increasing water scarcity. Hundreds of papers related to seawater mixed cement-based materials were published in ... -
Modal characterization of additively manufactured TPMS structures: comparison between different modeling methods
(Springer Nature, 2020-10-14)The use of lattice structures has received increasing interest in various engineering applications owing to their high strength to weight ratio. Advances in additive manufacturing technologies enabled the manufacturing of ... -
A model of chemical mechanical planarization to predict impact of pad conditioning on process performance
(Cambridge University Press, 2012)This study presents an effort to couple a wafer removal rate profile model based on the locally relevant Preston equation to the change in pad thickness profile which reflects to post polish profile of the wafers after ... -
Model-based optimization of CMP process parameters for uniform material removal selectivity in cu/barrier planarization
(IOP Publishing, 2022-02-01)Chemical mechanical planarization is a process of achieving planar surfaces in the semiconductor manufacturing industry. The planarization of a surface is achieved by material removal from the wafer surface. The material ... -
Modeling and control of flywheel mechanical hybrid powertrain for real world conditions
(Canadian Acoustical Association, 2019)This paper focuses on dynamical response characteristics of a flywheel mechanical hybrid powertrain (FMHP), comprising a continuously variable transmission (CVT) and a flywheel integrated into a conventional vehicle with ... -
A modeling study on the layout impact of with-in-die thickness range for STI CMP
(ECS, 2013)Chemical Mechanical Planarization process has a proven track record as an effective method for planarizing the wafer surface at multiple points of the semiconductor manufacturing flow. One of the most challenging aspects ... -
Modeling, transient simulations and parametric studies of parabolic trough collectors with thermal energy storage
(Elsevier, 2020-03-15)For investigating the system response of parabolic trough collector heat generating system, a plant with parabolic trough collector field and two-tank molten salt thermal energy storage model with component-level control ... -
A Monte Carlo random walk-based methodology for calculation of sensitivity coefficients in inverse radiant boundary design problem
(Begell House Inc., 2023)This study presents a methodology for the solution of inverse boundary design problems involving transient heat conduction in solid objects imposed by radiant boundary condition. The inverse solution aims to find the ... -
A Monte Carlo simulation for phonon transport within silicon structures at nanoscales with heat generation
(Elsevier, 2011-04)Nanoscale phonon transport within silicon structures subjected to internal heat generation was explored. A Monte Carlo simulation was used. The simulation procedures differed from the current existing methods in which ... -
Multi-strategy Gaussian Harris hawks optimization for fatigue life of tapered roller bearings
(Springer, 2022-12)Bearing is one of the most fundamental components of rotary machinery, and its fatigue life is a crucial factor in designing. The design optimization of tapered roller bearing (TRB) is a complex design problem because ... -
Nano-boron as an antibacterial agent for functionalized textiles
(Cambridge University Press, 2015-01)The antibacterial properties of boron-containing compounds are well known although there are limited studies available on the pure boron nanoparticles. In this study boron nano-particles were characterized in terms of their ... -
Natural convection immersion cooling with enhanced optical performance of light-emitting diode systems
(2015-10-15)Electronics driven at high currents may experience local hot spots, which may cause thermal degradation or even catastrophic failures. This common problem occurs at light-emitting diode (LED) chips and it is not easily ...
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