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Papers & Presentations

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Showing results 1 - 17 of 17

Nanotechnology

	A Consistent Environment for the Numerical Prediction of the Properties of Composite Materials The current paper focuses on the creation of a consistent environment for the numerical prediction of the physical properties of polymer composite. A limitation factor for the successful simulation of composite processes is the correct... COMSOL Conference 2009, Milan J. Schumacher¹ , P. Fideu² , G. Ziegmann¹ , and A. Herrmann³ ¹ TU Clausthal-Institute of Polymere Materials and Plastic Engineering, Clausthal-Zellerfeld, Germany ² CTC GmbH Stade, Stade, Germany ³ Faserinstitut Bremen e.V., Bremen, Germany
	Chip Drop After Silver Sintering Process Since a couple of years, sintering becomes more and more important for power electronics. To press a semiconductor under high temperature in silver paste on a substrate promises benefits for durability. Tests with semiconductors of... COMSOL Conference 2009, Milan M.H. Poech¹ , M. Weiß¹ , and K. Gruber¹ ¹ Fraunhofer Institute for Silicon Technology, Itzehoe, Germany
	Control of Rolling Direction for Released Strained Wrinkled Nanomembrane Strained wrinkled and flat nanomembranes have different bending properties when they are released from the underlying substrate. This is caused by increased bending rigidity of the wrinkled film in one direction. We provide theoretical... COMSOL Conference 2009, Milan P. Cendula¹ , S. Kiravittaya¹ , J. Gabel¹ , and O.G. Schmidt¹ ¹ Institute for Integrative Nanosciences, Dresden, Germany
	Designing an Array of Nanocalorimeters for Screening Biochemical Interactions In this presentation we present our analysis of the PARC Nanocalorimeter. Calorimetry is basically the measuring of heat of chemical reactions or physical changes. Nanocalorimetry is Calorimetry at the Nanometer scale. The PARC... COMSOL Conference 2006, Las Vegas F. Torres Palo Alto Research Center
	Expanding Your Materials Horizons Materials and their related properties are intrinsically fundamental to the creation, development and solution of viable exploratory models when using numerical analysis software. In many cases, simply determining the location,... COMSOL Conference 2009, Boston R. Pryor¹ ¹ Pryor Knowledge Systems, Inc. (COMSOL Certified Consultant), Bloomfield Hills, Michigan, USA
	Mathematical modeling of nanomaterials Mathematical modeling at the Institute of New Materials has played a crucial role in supporting the manufacturing and design of new technologies of nanomaterials, whose applications range from transportation, electronics and optics... COMSOL Conference 2005, Boston Strauss, D.J., Trenado, C. Institute of New Materials, Saarbrücken
	Mobility of Catalytic Self-Propelled Nanorods Modeling with COMSOL Multiphysics^® A small particle or a nano-sized object placed in a liquid is subject to random collisions with solvent molecules. The resulting erratic movement of the object is known as Brownian motion, which, in nature, cannot be used to any practical... COMSOL Conference 2009, Milan F. Lugli¹ and F. Zerbetto¹ ¹ Department of Chemistry “G. Ciamician”, Università di Bologna, Bologna, Italy
	Modelling of Micro/Macro Densification Phenomena of Cu Powder during Capacitor Discharge Sintering Capacitor Discharge Sintering (CDS) is an ultrafast Electric Current Assisted Sintering method (u-ECAS) suited for electrically conductive powders. It is characterized by relatively short processing times (milliseconds range) and much... COMSOL Conference 2009, Milan G. Maizza¹ and A. Tassinari¹ ¹ Dipartimento di Scienza dei Materiali ed Ingegneria Chimica, Politecnico di Torino, Torino, Italy
	Modelling of SiC Chemical Vapour Infiltration Process Assisted by Microwave Heating The excessive presence of residual SiC matrix inter-fiber pores is often the main cause for the very poor mechanical strength and toughness of SiC/SiC composites manufactured by CVI (Chemical Vapour Infiltration) process. This work... COMSOL Conference 2009, Milan G. Maizza¹ and M. Longhin¹ ¹ Dipartimento di Scienza dei Materiali ed Ingegneria Chimica, Politecnico di Torino, Torino, Italy
	Nanoscale Heat Transfer using Phonon Boltzmann Transport Equation COMSOL Multiphysics was used to solve a phonon Boltzmann transport equation (BTE) for nanoscale heat transport problems. One dimensional steady-state and transient BTE problems were successfully solved based on finite element and discrete... COMSOL Conference 2009, Boston S. Sihn^1,2 , and A.K. Roy² ¹ Air Force Research Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio, USA ² University of Dayton Research Institute, Dayton, Ohio, USA
	Optimization of Carbon Nanotube Field Emission Arrays Carbon nanotubes (CNTs) have been proven experimentally to be well suited for field emission applications. An optimized triode configured CNT field emission array is developed using the COMSOL Multiphysics Electrostatics Application to... COMSOL Conference 2009, Boston B. L. Crossley¹ , M. Kossler¹ , P.J. Collins¹ , R. A. Coutu Jr.¹ , and L. A. Starman¹ ¹ Air Force Institute of Technology, Wright-Patterson AFB, Ohio, USA
	Oxidation of Metallic Nanoparticles The oxidation behavior of metallic nanoparticles is investigated in respect to material parameters like Mott potential, defects on the microstructure and oxide volume increase per ionic defect. An emphasis is laid on magnetic... COMSOL Conference 2009, Milan A. Auge¹ , A. Weddemann¹ , F. Wittbracht¹ , B. Vogel¹ , and A. Hütten¹ ¹ Department of Physics, Thin Films and Physics of Nanostructures, Bielefeld University, Bielefeld, Germany
	Particle Flow Control by Magnetically Induced Dynamics of Particle Interactions In this work, we show that dipolar magnetic coupling can be used to control the particle flow through microfluidic structures without changing the state of motion of the carrier liquid. Also no external magnetic gradient fields are... COMSOL Conference 2009, Milan F. Wittbracht¹ , A. Weddemann¹ , A. Auge¹ , and A. Hütten¹ ¹ Department of Physics, Thin Films and Physics of Nanostructures, Bielefeld University, Bielefeld, Germany
	Phasefield Modeling of Ferroelectric Materials Outline of presentation: theory of phase-field modeling of ferroelectric materials parameter identification in free energy density finite element implementation: PDE form weak form periodic boundary... COMSOL Conference 2009, Milan Marc Kamlah Head of the Mechanics of Materials Department, Forschungszentrum Karlsruhe, Germany
	Reaction and Diffusion Phenomena in Technical Steel Samples A numerical model to describe diffusion controlled phenomena between fast reacting chemical species has been developed. Equilibrium calculations were performed by an external link between the software COMSOL and a thermodynamic database.... COMSOL Conference 2009, Milan M. Auinger¹ and M. Rohwerder¹ ¹ Max-Planck-Institut für Eisenforschung GmbH, Duesseldorf, Germany
	Simulation of Daisy Chain Flip-Chip Interconnections Flip-chip interconnection technologies have been tested through the use of a test chip with embedded single-bump daisy chains. The Flip-Chip technologies are selected among Au bump Thermocompression (TC) with and without Nonconductive... COMSOL Conference 2009, Milan G.S. Durante¹ and M. Fretz¹ ¹ CSEM Zentralschweiz, Alpnach Dorf, Switzerland
	Study of Artificial Molecular Engines Action Through COMSOL Multiphysics^® Program Rotaxanes are a class of molecules recently developed in laboratory that have been heralded as possible molecular motors. The motor is constituted by a linear molecule (thread) and a ring-shaped molecule (macrocycle), which is free to... COMSOL Conference 2009, Milan L. Moro¹ , F. Lugli¹ , and F. Zerbetto¹ ¹ Department of Chemistry “G. Ciamician”, Università di Bologna, Bologna, Italy

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Nanotechnology