Devulapalli, V.; Frommeyer, L.; Ghidelli, M.; Liebscher, C.; Dehm, G.: From epitaxially grown thin films to grain boundary analysis in Cu and Ti. International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices, IAMNano, Düsseldorf, Germany (2019)
Jeong, J.; Dehm, G.; Liebscher, C.: Advances in automatic TEM based orientation mapping with precession electron diffraction. International Workshop on Advanced In Situ Microscopies
of Functional Nanomaterials and Devices (IAMnano 2019), Düsseldorf, Germany (2019)
Peter, N. J.; Liebscher, C.; Kirchlechner, C.; Dehm, G.: Ag segregation induced nanofaceting transition of an asymmetric tilt grain boundary in Cu and its impact on plastic deformation mechanisms. PICO 2019, Vaals, The Netherlands (2019)
Ahmad, S.; Meiners, T.; Frolov, T.; Liebscher, C.; Dehm, G.: Grain boundary structure and phase transitions in Cu and Al [111] tilt grain boundaries. International Workshop on Advanced and In-situ Microscopies of Functional Nanomaterials and Devices, IAMNano, Düsseldorf, Germany (2019)
Lee, S.; Duarte, M. J.; Liebscher, C.; Oh, S. H.; Dehm, G.: Dislocation Plasticity in Single Crystal FeCrCoMnNi HEA by in-situ TEM Deformation. Schöntal Symposium - Dislocation based plasticity, Schöntal, Germany (2018)
Peter, N. J.; Kirchlechner, C.; Liebscher, C.; Dehm, G.: Effect of the atomistic grain boundary structure on dislocation interaction in copper. Gordon Research Conference (GRC) 2016, Thin Film & Small Scale Mechanical Behavior
, Lewiston, ME, USA (2016)
Meiners, T.; Liebscher, C.; Dehm, G.: Atomic structure and segregation phenomena at copper grain boundaries. EMC2016, The 16th European Microscopy Congress, Lyon, France (2016)
Peter, N. J.; Kirchlechner, C.; Liebscher, C.; Dehm, G.: Beam induced atomic migration at Ag containing nanofacets at an asymmetric Cu grain boundary. European Microscopy Congress (EMC) 2016
, Lyon, France (2016)
Liebscher, C.; Radmilovic, V. R.; Dahmen, U.; Asta, M. D.; Ghosh, G.: Hierarchical Microstructure of Ferritic Superalloys. IAMNano 2015 - The International Workshop on Advance
and In-situ Microscopies of Functional Nanomaterials and
Devices, Hamburg, Germany (2015)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
Within this project, we will use a green laser beam source based selective melting to fabricate full dense copper architectures. The focus will be on identifying the process parameter-microstructure-mechanical property relationships in 3-dimensional copper lattice architectures, under both quasi-static and dynamic loading conditions.
Oxides find broad applications as catalysts or in electronic components, however are generally brittle materials where dislocations are difficult to activate in the covalent rigid lattice. Here, the link between plasticity and fracture is critical for wide-scale application of functional oxide materials.
Copper is widely used in micro- and nanoelectronics devices as interconnects and conductive layers due to good electric and mechanical properties. But especially the mechanical properties degrade significantly at elevated temperatures during operating conditions due to segregation of contamination elements to the grain boundaries where they cause…
In this project we work on correlative atomic structural and compositional investigations on Co and CoNi-based superalloys as a part of SFB/Transregio 103 project “Superalloy Single Crystals”. The task is to image the boron segregation at grain boundaries in the Co-9Al-9W-0.005B alloy.