E Lightweight Materials


Organisationseinheit:
Exzellenz-Cluster Engineering of Advanced Materials

FAU Kontaktperson:
Körner, Carolin Prof. Dr.-Ing.

Beschreibung:

Lighter, stronger, and safer materials


Advanced materials (ceramics, metals, polymers) with a combination
of low density and high strength thanks to their novel cellular or
layered microstructure


Research Area E Engineering of Lightweight Materials focuses on
improving the properties of load-bearing materials by introduction of
two types of new microstructures. The properties in question are e.g.
weight, tensile strength, creep strength, toughness.

  • Cellular
    Structures: Such microstructures have been used in metals, ceramics,
    and polymers for several years in order to reduce weight, to increase
    strength and stiffness, or to enhance energy absorption and damping
    capability. Traditionally, cell sizes are fairly large and the cell size
    distribution is rather heterogeneous. New technologies are being
    developed in Research Area E that are able to reduce the cell size
    significantly. Apart from finer cell sizes completely new cell
    architectures are investigated as in auxetic foams (cell geometries that
    lead to negative Poisson’s ratio) and hierarchical foams (cellular
    primary skeleton filled with secondary microcellular foam).

  • Layered
    Materials: In this novel approach, bulk material is being fabricated
    from very thin layers. Typical layer thickness is 10 µm or less.
    Depending on the fabrication process, the grain sizes in such materials
    can be extremely small with ensuing positive effects on strength and
    ductility. The approach can also be used to fabricate composites with
    superior strength and stiffness. At the moment the focus lies on
    accumulated roll bonding as a way to fabricate layered materials.



Zugewiesene Publikationen

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Wildner, W., & Drummer, D. (2018). Light scattering of glass-particle filled matrices with similar refractive index. Journal of Composite Materials. https://dx.doi.org/10.1177/0021998318778889
Wildner, W., & Drummer, D. (2018). Nanofiller materials for transparent polymer composites: Influences on the properties and on the transparency—A review. Journal of Thermoplastic Composite Materials, 1-19. https://dx.doi.org/10.1177/0892705718797157
Markl, M., Lodes, M., Franke, M., & Körner, C. (2017). Additive Fertigung durch selektives Elektronenstrahlschmelzen. Schweissen und Schneiden, 69, 30-39.
Saeb, S., Steinmann, P., & Javili, A. (2017). Bounds on size-dependent behavior of composites. Philosophical Magazine, 17, 1-27. https://dx.doi.org/10.1080/14786435.2017.1408967
Esmaeili, A., Steinmann, P., & Javili, A. (2017). COUPLED THERMALLY GENERAL IMPERFECT AND MECHANICALLY COHERENT ENERGETIC INTERFACES SUBJECT TO IN-PLANE DEGRADATION. Journal of Mechanics of Materials and Structures.
Harris, J., & Wolf, S. (2017). Desiccator Volume: A Vital Yet Ignored Parameter in CaCO3 Crystallization by the Ammonium Carbonate Diffusion Method. Minerals, 7(7). https://dx.doi.org/10.3390/min7070122
Wormser, M., Wein, F., Stingl, M., & Körner, C. (2017). Design and Additive Manufacturing of 3D Phononic Band Gap Structures Based on Gradient Based Optimization. Materials, 10(10). https://dx.doi.org/10.3390/ma10101125
Do, G., Stiegler, T., Fiegl, M., Adler, L., Körner, C., Bösmann, A.,... Wasserscheid, P. (2017). Electrophoretic Deposition of Boehmite on Additively Manufactured, Interpenetrating Periodic Open Cellular Structures for Catalytic Applications. Industrial & Engineering Chemistry Research, 56(45), 13403-13411. https://dx.doi.org/10.1021/acs.iecr.7b02453
Weisenseel, B., Harris, J., Stumpf, M., Wolf, S., Fey, T., & Greil, P. (2017). Enhancement of the Carbothermal Reduction of Hafnium Oxide by Silicon. Advanced Engineering Materials, 19(1), 1600377. https://dx.doi.org/10.1002/adem.201600377
Wormser, M., Warmuth, F., & Körner, C. (2017). Evolution of full phononic band gaps in periodic cellular structures. Applied Physics A: Solids and Surfaces. https://dx.doi.org/10.1007/s00339-017-1278-6

Zuletzt aktualisiert 2019-26-03 um 15:19