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Two-dimensional Model of a Lithium Iron-Phosphate Single Particle - new

M. Cugnet [1][2],
[1] Université Grenoble Alpes INES, Le Bourget du Lac, France
[2] CEA, LITEN, Grenoble, France

Introduction: Lithium-ion batteries are widely used as power sources for portable electronic devices (laptop, phones, and players) and electric cars due to their high energy density. New applications, such as Formula E, require also a huge power capability that the iron-phosphate-based positive electrode is able to provide. Indeed, a recent publication [1] shows that, at the particle level (20 ...

Three-Dimensional Modeling of Electrical Scanning Probe Microscopy Problems - new

G. Gomila [1], L. Fumagalli [2], R. Fabregas [3],
[1] Institut de Bioenginyeria de Catalunya (IBEC), Departament d’Electrònica, Universitat de Barcelona, Barcelona, Spain
[2] School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
[3] Institut de Bioenginyeria de Catalunya (IBEC), Universitat de Barcelona, Barcelona, Spain

Electrical scanning probe microscopy (SPM) techniques, such as electrostatic force microscopy, nanoscale impedance microscopy or scanning near field microwave microscopy, are a relatively new branch of microscopy techniques that can generate images of the nanoscale electrical properties of samples (conductivity, permittivity, charge, etc.). These techniques scan the surface of a sample ...

Modeling Directed Self-Assembly of Block Copolymers for Lithographic Applications - new

A. Fouquet [1], R. Orobtchouk [2], J. Hazart [1],
[1] CEA-LETI, Grenoble, France
[2] Institut des Nanosciences de Lyon (INL), Villeurbanne, France

Nano patterning for chip manufacturing has reached its limitation with 193i lithography standard process. Directed Self Assembly (DSA) of Block Co-Polymers (BCP) is envisaged as an alternative complementary technique that can reduce critical dimension and pitch with high throughput and limited cost [1]. For contact layers that require patterning of cylinders with diameter of tens nanometers, DSA ...

Optimization of the Supersonic Gas Jets' Parameters for In-Gas-Jet Nuclear Spectroscopy Studies - new

A. Zadvornaya [1], Y. Kudryavtsev [1],
[1] KU Leuven, Leuven, Belgium

The in-gas-jet laser ionization and spectroscopy method (Figure 1) that has been developed at KU Leuven allows to produce and to perform laser spectroscopy of short-lived radioactive isotopes created in different types of nuclear reactions [1,2]. To realize the advantages of in-gas-jet ionization, the parameters of the gas cell (in which the isotopes under investigation should be efficiently ...

Prospects of Multiphysics Simulations to Steer the Development of High Brightness LED Technologies - new

T. Lopez [1], O. Shchekin [1],
[1] Lumileds, Eindhoven, Netherlands

The versatility of COMSOL Multiphysics® software has positioned it at competitive levels against other considered industrial-standard engineering software tools. This contribution is directed towards emphasizing the need of further developing the basic concepts of this versatile tool in order to enable the implementation of complex physics modeling techniques in rapid, flexible and customized ...

Investigating Magnetic and Electric Fields Couplings for 3D Models in Harmonic and Transient States - new

O. Maloberti [1], O. Mansour [1]
[1] ESIEE Amiens, Amiens, France

At present, no 3D transient magnetic and electric fields formulation with strong eddy currents and high electric fields is available in the physical applications with COMSOL Multiphysics® software. However, some industrial products need such a tool, as it is the case for induction coils of pulsed magnetic technologies. The principle is to induce a force thanks to strong eddy currents induced by ...

Optimization of Welding Parameters using 3D Heat and Fluid Flow Modeling of Keyhole Laser Welding - new

S. Gaied [1], M. Courtois [2], M. Carin [2], P. Le Masson [2]
[1] ArcelorMittal Global R&D, Montataire, France
[2] LUniv. Bretagne-Sud, Lorient, France

A Laser-welded blank (LWB) consists of steels of different thicknesses and/or grades welded together to produce a single blank prior to the forming process. LWB are mostly used in the automotive field where the high productivity of the laser welding process is an advantage. Numerical modeling of the welding process could be a way to optimize the energy input and the quality of LWB, by taking ...

Geometric Multigrid Solver and Experimental Validation in Laser Surface Remelting - new

M. M. Pariona [1], F. de Oliveira [1],
[1] State University of Ponta Grossa, PR, Brazil

INTRODUCTION The purpose of this work is to verify the effect of Multigrid method on the CPU time for the resolution of the heat transfer model, based on the Finite Element Method (FEM), in order to simulate the laser surface remelting (LSR) of the Al–1.5 wt.% Fe alloy. To accelerate the convergence of Single grid methods, Multigrid method (MG) was employed in order to reduce the CPU time. In ...

Efeito da Pulsação do Ar Durante a Fluidização de Partículas de Amido de Milho - new

G. C. Dacanal [1], M. G. Thomazi [1], R. Ribeiro [1],
[1] Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos, Pirassununga, SP, Brasil

Modelling Heat and Mass Transfer in Microreactor for Methanol to Hydrocarbons - new

P. A. Delou [1,3], V. Degirmenci [2,3],
[1] Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
[2] University of Warwick, Coventry, United Kingdom
[3] Queen’s University Belfast, Belfast, United Kingdom

Recently, increasing availability of natural gas, due to the shale gas, raises the attention to the conversion of methane. Methanol-to-Hydrocarbons reaction (MTH) plays an important role in this route where methanol synthesized through syngas is converted into hydrocarbons, such as Gasoline. In this study heat and mass transfer for MTH reaction over ZSM-5 as catalyst for an specific microreactor ...

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