Al-Sawalmih, A.; Li, C.; Siegel, S.; Fabritius, H.; Yi, S. B.; Raabe, D.; Fratzl, P.; Paris, O.: Microtexture and Chitin/Calcite Orientation Relationship in the Mineralized Exoskeleton of the American Lobster. Advanced Functional Materials 18 (20), pp. 3307 - 3314 (2008)
Raabe, D.; Al-Sawalmih, A.; Yi, S. B.; Fabritius, H.: Preferred crystallographic texture of α-chitin as a microscopic and macroscopic design principle of the exoskeleton of the lobster Homarus americanus. Acta Biomaterialia 3, pp. 882 - 895 (2007)
Raabe, D.; Romano, P.; Sachs, C.; Fabritius, H.; Al-Sawalmih, A.; Yi, S. B.; Servos, G.; Hartwig, H. G.: Microstructure and crystallographic texture of the chitin-protein network in the biological composite material of the exoskeleton of the lobster Homarus americanus. Materials Science and Engineering A 421, pp. 143 - 153 (2006)
Raabe, D.; Romano, P.; Al-Sawalmih, A.; Sachs, C.; Servos, G.; Hartwig, H. G.: Mesostructure of the Exoskeleton of the Lobster Homarus Americanus. Mater. Res. Soc. Sympos. Proc. 874, pp. 155 - 160 (2005)
Raabe, D.; Romano, P.; Sachs, C.; Al-Sawalmih, A.; Brokmeier, H. G.; Yi, S. B.; Servos, G.; Hartwig, H. G.: Discovery of a honeycomb structure in the twisted plywood patterns of fibrous biological nano-composite tissue. Journal of Crystal Growth 283, 1-2, pp. 1 - 7 (2005)
Raabe, D.; Al-Sawalmih, A.; Romano, P.; Sachs, C.; Brokmeier, H. G.; Yi, S. B.; Servos, G.; Hartwig, H. G.: Structure and crystallographic texture of arthropod bio-composites. In: Materials Science Forum, Proceedings of the 14th International Conference on Textures of Materials ICOTOM 14, pp. 1665 - 1674. 14th International Conference on Textures of Materials ICOTOM 14, Leuven, Belgium, July 11, 2005 - July 15, 2005. Trans Tech Publications, Switzerland (2005)
Al-Sawalmih, A.; Fabritius, H.; Yi, S. B.; Li, C.; Siegel, S.; Raabe, D.; Paris, O.: Investigation of the Orientation Relationship Between α-Chitin and Calcite in Crustacean Cuticle Using Microbeam Synchrotron X-ray Diffraction. 15th International Conference on the Texture of Materials (ICOTOM 15), Pittsburgh, PA, USA (2008)
Raabe, D.; Sachs, C.; Fabritius, H.; Romano, P.; Raue, L.; Klein, H.; Al-Sawalmih, A.: Crystallographic Textures from the Exoskeleton of the Lobster Homarus Americanus and Calculation of the Mechanical Properties of the Calcite Phase. 15th International Conference on the Textures of Materials (ICOTOM 15), Carnegie Mellon University Center, Pittsburgh, PA, USA (2008)
Sachs, C.; Romano, P.; Raue, L.; Fabritius, H.; Klein, H.; Paris, O.; Al-Sawalmih, A.; Fratzl, P.; Wu, X.; Raabe, D.: Crystallographic and topological textures of biological materials and the resulting anisotropy of the mechanical properties. 15th International Conference on the Texture of Materials (ICOTOM 15), Pittsburgh, PA, USA (2008)
Raabe, D.; Al-Sawalmih, A.; Raue, L.; Klein, H.; Fabritius, H.: Texture of Alpha-chitin and Calcite as a Microscopic Composite Design and Macroscopic Biological Construction Principle of the Exoskeleton of the Lobster Homarus americanus. MRS Fall Conference, Boston, MA, USA (2006)
Fabritius, H.; Romano, P.; Sachs, C.; Al-Sawalmih, A.; Raabe, D.: Arthropod cuticle as an example for bio-composite materials with a strong hierarchical order from the nano- to the macro-level of organization. MRS Fall Meeting, Boston, MA, USA (2005)
Raabe, D.; Al-Sawalmih, A.; Brokmeier, H. G.; Yi, S. B.: Texture and Smart Anisotropy of the Exoskeleton Tissue of Lobster. MRS Spring Meeting 2005, San Francisco, CA, USA (2005)
Raabe, D.; Romano, P.; Al-Sawalmih, A.; Sachs, C.; Servos, G.; Hartwig, H. G.: Microstructure and Mesostructure of the exoskeleton of the lobster homarus americanus. MRS Spring Meeting, San Francisco, CA, USA (2005)
Al-Sawalmih, A.; Romano, P.; Sachs, C.; Raabe, D.: Structure and texture analysis of chitin-bio-nanocomposites using synchrotron radiation. MRS Spring Meeting, San Francisco, CA, USA (2005)
Romano, P.; Al-Sawalmih, A.; Sachs, C.; Raabe, D.; Brokmeier, H. G.: Mesostructure, microstructure and anisotropy of the lobster cuticle. MRS Spring Meeting, San Francisco, CA, USA (2005)
Romano, P.; Raabe, D.; Al-Sawalmih, A.; Sachs, C.; Servos, G.; Hartwig, H. G.: Influence of sample preparation and anisotropy on lobster claw studied by LOM, SEM and TEM. Focus on Microscopy, Jena, Germany (2005)
Hydrogen in aluminium can cause embrittlement and critical failure. However, the behaviour of hydrogen in aluminium was not yet understood. Scientists at the Max-Planck-Institut für Eisenforschung were able to locate hydrogen inside aluminium’s microstructure and designed strategies to trap the hydrogen atoms inside the microstructure. This can…
For understanding the underlying hydrogen embrittlement mechanism in transformation-induced plasticity steels, the process of damage evolution in a model austenite/martensite dual-phase microstructure following hydrogenation was investigated through multi-scale electron channelling contrast imaging and in situ optical microscopy.
We will investigate the electrothermomechanical response of individual metallic nanowires as a function of microstructural interfaces from the growth processes. This will be accomplished using in situ SEM 4-point probe-based electrical resistivity measurements and 2-point probe-based impedance measurements, as a function of mechanical strain and…
Hydrogen induced embrittlement of metals is one of the long standing unresolved problems in Materials Science. A hierarchical multiscale approach is used to investigate the underlying atomistic mechanisms.
This project will aim at developing MEMS based nanoforce sensors with capacitive sensing capabilities. The nanoforce sensors will be further incorporated with in situ SEM and TEM small scale testing systems, for allowing simultaneous visualization of the deformation process during mechanical tests
The project aims to study corrosion, a detrimental process with an enormous impact on global economy, by combining denstiy-functional theory calculations with thermodynamic concepts.
Hydrogen embrittlement affects high-strength ferrite/martensite dual-phase (DP) steels. The associated micromechanisms which lead to failure have not been fully clarified yet. Here we present a quantitative micromechanical analysis of the microstructural damage phenomena in a model DP steel in the presence of hydrogen.
Thermo-chemo-mechanical interactions due to thermally activated and/or mechanically induced processes govern the constitutive behaviour of metallic alloys during production and in service. Understanding these mechanisms and their influence on the material behaviour is of very high relevance for designing new alloys and corresponding…
Nickel-based alloys are a particularly interesting class of materials due to their specific properties such as high-temperature strength, low-temperature ductility and toughness, oxidation resistance, hot-corrosion resistance, and weldability, becoming potential candidates for high-performance components that require corrosion resistance and good…