TU BRAUNSCHWEIG

PL-3 Junior Research Group Interfaces: Properties - Modification - Characterization

Welcome to the junior research group "Interfaces: Properties - Modification - Characterization". Our group is located at the research campus Open Hybrid LabFactory e.V. in Wolfsburg. The focus of our research activities is the tailored adjustment of interface properties, their suitable and industrial feasible characterization as well as the correlation with the properties of the composite material. Wetting, adhesion as well as corrosion or degradation are directly related to the chemical composition and the morphology of interfaces. As a result, boundary layers are of the highest relevance for the properties of hybrid composites and thus important for a large number of activities within the mobility research.

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Interfaces are the most property determinant elements in the interaction between different phases. In the field of composites and hybrid components, they are crucial because of their structural function within the material. In the majority of cases interfaces have only a dimension of a few nanometers and their properties can completely differ from the base material. Due to the small geometrically dimension of the interfaces their characterization is still challenging. The application of high-resolution analytics and the development of adjusted characterization methods is one main task of the junior research group. Photoelectron spectroscopy, scanning electron and atomic force microscopy are applied in a novel approach to obtain further information on manufacturing process-related properties of interfaces. The application of infrared microscopy, in-situ ?-computed tomography and new testing techniques are used to develop methods for industrial interface analysis.

The chemical and morphological modification of interfaces is the second main task of the junior research group. The methods for interface modification include laser processing and structuring, chemical and electrochemical treatment, plasma treatment and coating, incorporation of nanoparticles and molecular adaptation of polymers at the interface.

Members on the part of Technische Universität Braunschweig: Members on the part of Leibniz Universität Hannover:
  1. Gundlach, C.; Hartwig, S.; Mannig, M.; Menzel, M.; Smatt, T.; Dilger, K.: A SPECIMEN FOR EVALUATING POTTING MATERIALS IN FUNCTIONAL INTEGRATED DESIGN SOLUTIONS, Hybrid materials and Structures, 2018. ISBN 978-3-88355-417-4.
  2. Reincke, T.; Hartwig, S.; Dilger, K.: High-tensile joints of continuously manufactured fusion bonded hybrid structures, 20th International Conference on Composite Structures, 2017. DOI: 10.1016/j.compstruct.2017.12.027.
  3. Reincke, T.; Kreling, S.; Dilger, K.: Adhesion of continuously manufactured fusion bonded multi-material structures consisting of steel and carbon fibre reinforced Polyamide 6, International Journal of Adhesion and Adhesives, 2017. DOI: 10.1016/j.ijadhadh.2017.09.012
  4. Klose, C.; Freytag, P.; Otten, M.; Thürer, S.E.; Maier, H.J. (2018): Thermal Properties of Intermetallic Phases at the Interface of Aluminum-Copper Compound Castings. Advanced Engineering Materials 29, S. 1701027.
  5. Otten, M.; Klose, C.; Möhwald, K.; Knödler, P.; Maier, H.J. (2017): Untersuchung der Serientauglichkeit des Schichttransplantationsprozesses zur Herstellung von beschichteten Druckgussbauteilen. Giesserei-Special Forschung und Innovation 1 (1), S. 74-89.
  6. Thürer, S.E.; Uhe, J.; Golovko, O.; Bonk, C.; Bouguecha, A.; Klose, C.; Behrens, B.-A.; Maier, H.J. (2017): Co-extrusion of semi-finished aluminium-steel compounds. AIP Conference Proceedings 1896, S. 140002.
  7. Thürer, S.E.; Uhe, J.; Golovko, O.; Bonk, C.; Bouguecha, A.; Behrens, B.-A.; Klose, C. (2017): Mechanical Properties of Co-Extruded Aluminium-Steel Compounds. Key Engineering Materials 742, S. 512-519.
  8. Engelhardt, M.; Behne, D.; Grittner, N.; Neumann, A.; Reimche, W.; Klose, C. (2015): Non-destructive Testing of Longitudinal and Charge Weld Seams in Extruded Aluminum and Magnesium Profiles. Materials Today: Proceedings 2 (10), S. 4866-4873.
  9. v Grittner, N.; Striewe, B.; Hehl, A. von; Engelhardt, M.; Klose, C.; Nürnberger, F. (2014): Characterization of the interface of co-extruded asymmetric aluminum-titanium composite profiles. Materialwissenschaft und Werkstofftechnik 45 (12), S. 1054-1060.
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  last changed 12.11.2018
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