Project Details
Projekt
GRK 1375: Nonmetallic Porous Structures for Physical-Chemical Functions
Subject Area
Materials Engineering
Term
from 2006 to 2011
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 19965933
The main research objective of the Research Training Group is the application of advanced porous ceramics in energy and process engineering technologies. For this purpose researchers in physics, chemistry and mathematics are cooperating with material scientists and engineers in process, fluid and combustion technologies. The research programmes of these groups form a network and contribute, with their individual activities and results, to the central targets of the Research Training Group. The graduate students are integrated with their innovative research concepts in existing groups of researchers which apply powerful techniques and methods in their programmes. All PhD students take part in the activities of a coordinated study programme, and reach their scientific qualifications benefits from the elaborated mentoring programme.
The Research Training Group is characterised by a common research programme selected according to the most favourable local conditions. Previous work and progress brought new applications of porous ceramic components under the focus. Transport processes of various media through porous structures represent the common approach of this programme. These processes include selective separation techniques of solid/liquid mixtures, microemulsion processes for liquid/liquid systems, fluid handling under space conditions, and thermoacoustic properties of refractories in combustion chambers. The required ceramic parts will be tailored for these applications and various fabrication lines following preceramic polymer pyrolysis and fiber composite techniques will be applied.
These intentionally qualified ceramics are to be analysed and tested using several complimentary methods. Tomographic methods on the basis of X-ray absorption will be used for 3-dimensional imaging of the inner structure of the opaque solid. Moreover, it will also be possible to study time resolved transport processes through these porous bodies using a new and unique camera technique. In addition, laser-based analytical techniques will be applied to measure transport rates and concentrations fields. The effect of electrical fields on these transport and separation processes will be studied. The results of these analytical studies will be used as input data for the generation of hydrodynamic models, which shall be further developed and applied in simulation studies of transport processes through the adjusted porous ceramic components.
The Research Training Group is characterised by a common research programme selected according to the most favourable local conditions. Previous work and progress brought new applications of porous ceramic components under the focus. Transport processes of various media through porous structures represent the common approach of this programme. These processes include selective separation techniques of solid/liquid mixtures, microemulsion processes for liquid/liquid systems, fluid handling under space conditions, and thermoacoustic properties of refractories in combustion chambers. The required ceramic parts will be tailored for these applications and various fabrication lines following preceramic polymer pyrolysis and fiber composite techniques will be applied.
These intentionally qualified ceramics are to be analysed and tested using several complimentary methods. Tomographic methods on the basis of X-ray absorption will be used for 3-dimensional imaging of the inner structure of the opaque solid. Moreover, it will also be possible to study time resolved transport processes through these porous bodies using a new and unique camera technique. In addition, laser-based analytical techniques will be applied to measure transport rates and concentrations fields. The effect of electrical fields on these transport and separation processes will be studied. The results of these analytical studies will be used as input data for the generation of hydrodynamic models, which shall be further developed and applied in simulation studies of transport processes through the adjusted porous ceramic components.
DFG Programme
Research Training Groups
Applicant Institution
Universität Bremen
Spokesperson
Professor Dr.-Ing. Georg Grathwohl
Participating Researchers
Professor Dr.-Ing. Michael E. Dreyer; Professor Dr.-Ing. Udo Fritsching; Professor Dr.-Ing. Arzhang Khalili; Professor Dr.-Ing. Reinhold Kienzler; Professor Dr. Stefan Odenbach; Professor Dr.-Ing. Hans Josef Rath (†); Professor Dr.-Ing. Norbert Räbiger (†); Professor Dr.-Ing. Jorg Thöming; Professor Dr.-Ing. Stefan Will
