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TUHH Aktuell
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Aktuelle Termine und Neuigkeiten an der TUHH
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26.04.2017, 08:30: IPHE Hydrogen Event at the TUHH

Meeting experts and test driving fuel cell-vehicles. This half day event provides an opportunity for students to meet international experts and IPHE delegates, and, to exchange views and information on the developments in fuel cells and hydrogen (FCH) policies and technologies including an overview of the current technical and market status of FCH in different countries. It also offers the opportunity to learn about research and potential employment perspectives. The event language will be English. Please register at: iue@tuhh.de

07.06.2017, 17:00: Mitmach-Experimentalvorlesung für die Kurse der Kinderforscher an der TUHH

Herzliche Einladung an Schüler, Lehrer, Eltern und Interessierte zur Mitmach-Experimentalvorlesung! Dort werden spannende Experimente vorgeführt, Fotos aus den Kursen gezeigt, und die Klassen treten zum Quiz gegeneinander an. Die "Experimentieren Pur"-Kurse in Kooperation mit der Schulbehörde und dem LI Hamburg finden zur Zeit an acht Grundschulen statt, um mehr Experimente in die Schulen zu bringen.

03.05.2017, 17:00: "Materialwissenschaftliches Kolloqium des SFB 986"

Dr. Rebecca Janisch Interdisciplinary Centre for Advanced Materials Simulation (ICAMS), Ruhr-Universität Bochum Grain boundary properties: Insights from atomistic simulations and their use in mechanical modeling of materials Modern structural materials are seldom single crystals, but exhibit a polycrystalline, multiphase, often hierarchical microstructure. The thus occurring interfaces in the microstructure have significant influence on the macroscopic properties. Nowadays even tailored microstructures, containing certain arrangements of grain boundaries with specific properties that can be tuned by segregation engineering, are within experimental reach. This gives additional impetus to the development of predictive material models that bridge between the atomistic details of grain boundaries and the effective properties of the microstructure, and can help to identify microstructures with optimized mechanical properties. Numerical simulation methods, that either allow the study of relevant processes on their characteristic length scale, or can be used to pass on information from finer to coarser length scales, are common tools in this respect. In the presentation some examples of atomistic studies of grain boundaries will be given that illustrate current developments and the challenges that one has to face when trying to extract effective mechanical behavior and to link it to fundamental physical and geometrical properties of the interfaces. The focus will be on lamellar TiAl alloys, in which the high density of interfaces can rule the overall mechanical behavior. High resolution experimental methods exist to analyze the underlying atomistic processes. However, since these processes are not independent, often several of them occur at the same time. To isolate the intrinsic deformation mechanisms of grain boundaries we have carried out molecular statics and molecular dynamics simulations of bicrystal shear at different boundaries. Four distinct mechanisms could be identified, namely rigid grain sliding, grain boundary migration, coupled sliding and migration, and dislocation nucleation and emission – that could...

17.05.2017, 17:00: "Materialwissenschaftliches Kolloqium des SFB 986"

Prof. Dr. Tobias Kraus INM Leibniz Institut für neue Materialien, Saarbrücken Self‐assembly of particle-based materials: Mechanisms and their application for flexible electronics Concrete, paint, rubber, and many other important materials are prepared from mixtures of particles, polymers, solvents, and additives. Their microstructures are often heterogeneous and hard to predict; they limit the performance. This talk will discuss how self‐assembly can be used to gain control over microstructure and properties of particlebased materials. We seek self‐assembly mechanisms that work with relevant materials, do not require complex chemistry, and are compatible with established materials manufacturing processes such as spray coating, doctor blading, and inkjet printing. I will discuss particle‐based electronic materials that illustrate our strategy. Metal spheres, rods, and wires with characteristic dimensions between 2 nm and 50 nm and narrow size distributions were chemically synthesized and coated with organic shells of varying thickness, density, and chemical nature. We determined shape and size using electron microscopy and scattering techniques. Colloidal interactions between the hybrid particles in different solvents were systematically quantified through concentration‐ and temperature‐dependent light and X‐ray‐scattering experiments. We study the onset of agglomeration, agglomeration rates, and the geometry of the agglomerates. Interfaces are used to confine the particles and template self‐assembly. I will show that monolayers and multilayers of nanoparticles, supraparticles and structured nanocomposites can be deposited using the right combination of interactions and confinement. Figure: I will discuss how the self‐assembly of chemically synthesized nanoparticles (for example, metals) can be tuned through chemistry, confinement, and external stimulation to yield functional structures for electronics We find that mobility and interaction at different length scales are central features of self‐assembly mechanisms for particle‐based materials. Their interplay affects whether the resulting materials reach equilibrium structures or are kinetically dominated. In practice, viscosity and time scales are often...

12.10.2017 - 13.10.2017, 09:00: Hamburg International Conference of Logistics - Logistics and SCM meet Digitalization

Recent advances in artificial intelligence and automation, as well as ever-increasing capacities of smart devices, have created a whole new business ecosystem. Additionally, customers are demanding more innovative, more diverse and greener products. This creates numerous challenges for all actors in the supply chain; yet, they also present a chance to create solutions and practices that improve performance and productivity. HICL 2017 focuses on research concepts and ideas that enable these tools and ideas to be used in logistics and SCM.

13.06.2017, 16:45: BIM aus der Sicht der Softwarelieferanten

Ringvorlesung im Rahmen des Moduls Baulogistik und Projektmanagement. Building Information Modeling (BIM) ist eine Methode zur Optimierung der Planung, der Ausführung und des Betriebs von Bauwerken. Die Grundlage von BIM sind 3D-Computermodelle. Durch die virtuelle Darstellung werden die Projektpartner in die Lage versetzt, sich das Projekt plastisch vorzustellen und die Ausführung vor der eigentlichen Umsetzung zu beurteilen. Schnittstellenfragestellungen können so bereits vor der Ausführungsphase gelöst und damit Zeit und Kosten eingespart werden. Mit denen durch BIM erzielten Verbesserungen im Bereich der Terminplanung, der Kostenkalkulation und des Gebäudebetriebs eröffnen sich neue Möglichkeiten der Zusammenarbeit zwischen allen Beteiligten im Bauwesen (Architekt, Fachplaner, Bauherren, Bauunternehmen und Betreiber). Diese Ringvorlesung beleuchtet die diversen Aspekte, die sich durch BIM für die einzelnen Stakeholder ergeben.