Aerogel-Aerogel composite as a core material for sandwich structures
Students, PhD-Students, Postdocs, experienced scientists from universities, research organization and industry are invited to make a unique experience: the manufacturing and characterization of a fancy nanostructured material: aerogels.
The first European School on Advanced Aerogels (ESSAA) is held in Hamburg and Cologne organized cooperatively by the Technische Universität Hamburg-Harburg, the Zentrum für angewandte Energieforschung Würzburg, the Universität Salzburg, Austria, the EMPA in Dübendorf, Switzerland and the Department of Aerogels at the German Aerospace Center. During this workshop participants will be introduced to the fascinating properties of aerogels and perform many lab-on experiments learning, how to make and characterize inorganic, organic and bio-polymeric aerogels
Aerogels – materials with extraordinary properties.
Aerogels are nano-structured open porous materials made via a sol-gel process. They combine most often extraordinary properties: high porosity (up to 99.9 %), ultralow density (5 – 300 g/L), high surface area (up to 2000 m2/g). They can be synthesized from inorganic or organic precursors. Currently silica aerogels are the most frequently used and have a wide range of applications. Aerogels are the best known thermal insulators (thermal conductivity 5 to 20 mW/mK). Inorganic aerogels can be prepared via sol-gel processing, a technique which requires alkoxides or metal salts in alcoholic or aqueous solutions. After mixing, a dispersion of colloidal particles are generated (hydrolysis and polycondensation) which form a three-dimensional network (gelation). The particle size depends on the catalyst and varies between nanometer and micrometer scale. After the gelation process the enclosed pore liquid has to be carefully removed to preserve the nanostructure of the aerogel. This is most often done by supercritical
What can you expect during the European School on Advanced Aerogels?
Experts will present their work about aerogels. They will talk about the synthesis and the drying process of aerogels as well as their characterization and applications. In the laboratories in Hamburg and Cologne participants will synthesize organic, bio-polymeric and silica aerogels. Different drying techniques will be evaluated and the aerogel samples will be characterized by scanning electron microscopy, nitrogen adsorption-desorption, thermogravimetric analysis, IR-spectroscopy, density, thermal conductivity, gas permeability and mechanical properties.
Institut für Thermische Verfahrenstechnik V8
TU Hamburg Harburg
Institut für Werkstoff-Forschung
Abteilung Aerogele Gebäude 21
Deutsches Zentrum für Luft- und Raumfahrt,
October 8-10, 2014
Students: 150 € (including lodging, meals, a script and
transfer from Hamburg to Cologne)
All other participants: 450 €
Registration and information:
The registration time is over.