Grabowski, B.; Wippermann, S. M.; Glensk, A.; Hickel, T.; Neugebauer, J.: Random phase approximation up to the melting point: Impact of anharmonicity and nonlocal many-body effects on the thermodynamics of Au. DPG Spring Meeting 2015, Berlin, Germany (2015)
Nugraha, T. A.; Wippermann, S. M.: Understanding 3C-SiC/SiO2 interfaces in SiC-nanofiber based solar cells from ab initio theory. APS March Meeting 2015, San Antonio, TX, USA (2015)
Scalise, E.; Wippermann, S. M.; Galli, G.: Nanointerfaces in InAs-Sn2S6 nanocrystal-ligand networks: atomistic and electronic structure from first principles. APS March Meeting 2015, San Antonio, TX, USA (2015)
Scalise, E.; Wippermann, S. M.; Galli, G.: Nanointerfaces in InAs-Sn2S6 nanocrystal-ligand networks: atomistic and electronic structure from first principles. 79th Annual Meeting of the DPG and DPG Spring Meeting, Berlin, Germany (2015)
Wippermann, S. M.; Schmidt, W. G.; Oh, D. M.; Yeom, H. W.: Impurity-mediated early condensation of an atomic layer electronic crystal: oxygen-adsorbed In/Si(111)-(4×1)/(8×2). DPG Spring Meeting 2015, Berlin, Germany (2015)
Yang, L.; Tecklenburg, S.; Fang, N.; Erbe, A.; Wippermann, S. M.; Gygi, F.; Galli, G.: A joint first principles and ATR-IR study of the vibrational properties of interfacial water at Si(100):H-H2O solid-liquid interfaces. APS March Meeting 2015 , San Antonio, TX, USA (2015)
Wippermann, S. M.; Schmidt, W. G.: In/Si(111)-(4×1)/(8×2): a fascinating model system for one-dimensional conductors. DPG March Meeting 2014, Berlin, Germany (2014)
Wippermann, S. M.; Schmidt, W. G.: In/Si(111)-(4x1)/(8x2): A fascinating model system for one-dimensional conductors. DPG Spring Meeting, Dresden, Germany (2014)
Scalise, E.; Wippermann, S. M.; Galli, G.: Nanointerfaces in semiconducting nanocomposites: atomistic and electronic structure from first principles. PSI-K 2015 Conference , San Sebastian, Spain (2015)
International researcher team presents a novel microstructure design strategy for lean medium-manganese steels with optimized properties in the journal Science
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.
The aim of the work is to develop instrumentation, methodology and protocols to extract the dynamic strength and hardness of micro-/nano- scale materials at high strain rates using an in situ nanomechanical tester capable of indentation up to constant strain rates of up to 100000 s−1.