Project Details
Projekt
X-ray diffractometer
Subject Area
Materials Science
Term
Funded in 2021
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 493363121
The subject of this application is a versatile X-ray diffractometer for shared use on the Straubing Campus for Biotechnology and Sustainability at the Technical University of Munich. Typical laboratory devices with Bragg-Brentano geometry allow the recording of isotropic intensity over scattering angles in the large-angle range, greater than 3 degrees. This allows the determination, quantification and a degree of model adaptation of the crystal structures present in the sample at room temperature.The device applied for should also be able to record scattered intensities in the small-angle and ultra-small-angle range in order to allow the characterization of nanometer to submicrometer-scale superstructures. Furthermore, it should be able to use an area detector and further freedom in the positioning of the sample and detector (Euler cradle and in-plane goniometer) to record textures of samples, including thin layers. Layer thicknesses and roughness should also be determined by means of X-ray reflectometry. In this context it is necessary to switch between the divergent and parallel beam. Ultimately, it should be able to track the behavior of materials as a function of temperature.The device applied for is intended to support research on the Straubing campus in the field of synthesis of hierarchical materials, biogenic polymers, biogenic optical and catalytic functional materials, and protein research. In detail, more in-depth work by the Chair for Biogenic Polymers, the Bio-Mediated Material Structuring Working Group (Chair for Biogenic Polymers) and the Chair for Biogenic Functional Materials should be made possible: At the Chair of Biogenic Polymers, studies of textures and topographies in materials are to be used to characterize climate-adaptive architectural cottonid elements and bionic high-tech materials for optical applications. Furthermore, the thermal behavior of biogenic thermoplastics is to be investigated in order to evaluate the material suitability.In the working group Bio-mediated Material Structuring, texture analyzes as well as 2D large / small angle scattering and ultra small angle scattering are to be used to investigate the hierarchical organization of 'rheotactic' biofilms that have grown in flowing culture media.For the work of the Chair of Biogenic Functional Materials, thin-film analysis techniques are primarily used: Here, light-emitting and photovoltaic materials and components are researched using thin-film technology. Texture analyzes, X-ray reflectometric and diffraction topographic methods should be used to trace application-relevant key figures back to structural features.
DFG Programme
Major Research Instrumentation
Major Instrumentation
Röntgendiffraktometer
Instrumentation Group
4011 Pulverdiffraktometer
Applicant Institution
Technische Universität München (TUM)
