8 citations · 23 across the 12 of their papers we have counts for
12 papers
Designing artificial zinc phosphate tribofilms with tailored mechanical properties by altering the chain length
Sebastian Lellig, Subisha Balakumar, Peter Schweizer +9
Zinc dialkyldithiophosphate (ZDDP), as the most prominent lubrication additive, forms tribofilms consisting primarily of zinc phosphate glasses containing sulfides. As sulfur is li…
The effect of elastic-plastic mismatch and interface proximity on the fracture toughness of Ti-TiN thin films
Nidhin George Mathews, Aloshious Lambai, Marcus Hans +3
Magnetron sputtered titanium nitride (TiN) thin films are widely used as protective coatings due to their high hardness, but suffer from inherent brittleness and low fracture tough…
Microscale deformation of intermetallic-Mg interface under shear loading
Anwesha Kanjilal, Shamsa Aliramaji, Deborah Neuß +4
While intermetallic (IM)-metal interfaces in metallic alloys are critical for tuning mechanical properties, they can also act as failure sites, underscoring the importance of deter…
An atomic-scale view at Fe4N as hydrogen barrier material
Aleksander Albrecht, Sang Yoon Song, Chang-Gi Lee +9
Hydrogen, while a promising sustainable energy carrier, presents challenges such as the embrittlement of materials due to its ability to penetrate and weaken their crystal structur…
Prediction and identification of point defect fingerprints in X-ray photoelectron spectra of TiN with 1.18 1.37
Pavel Ondračka, Pauline Kümmerl, Marcus Hans +5
We investigate the effect of selected N and Ti point defects in 1 TiN on N 1s and Ti\,2p binding energies (BE) by experiments and ab initio calculations. X-ray photoelec…
Valence electron concentration- and N vacancy-induced elasticity in cubic early transition metal nitrides
Soheil Karimi Aghda, Dimitri Bogdanovski, Lukas Loefler +7
Motivated by frequently reported deviations from stoichiometry in cubic transition metal nitride (TMNx) thin films, the effect of N-vacancy concentration on the elastic properties…
On the determination of the thermal shock parameter of MAX phases: A combined experimental-computational study
Matej Fekete, Clio Azina, Pavel Ondračka +5
Thermal shock resistance is one of the performance-defining properties for applications where extreme temperature gradients are required. The thermal shock resistance of a material…
Chemical and structural characterization of the native oxide scale on a Mg-based alloy
Deborah Neuß, Ingrid E. McCarroll, Siyuan Zhang +11
In this study, the structure and composition of the native oxide forming on the basal plane (0001) of Mg-2Al-0.1Ca is investigated by a correlative approach, combining scanning tra…
Yttrium incorporation in Cr2AlC: On the metastable phase formation and decomposition of (Cr,Y)2AlC MAX phase thin films
Clio Azina, Tim Bartsch, Damian M. Holzapfel +7
Herein we report on the synthesis of a metastable (Cr,Y)2AlC MAX phase solid solution by co-sputtering from a composite Cr-Al-C and elemental Y target, at room temperature, followe…
Microstructure, grain boundary evolution and anisotropic Fe segregation in (0001) textured Ti thin films
Vivek Devulapalli, Marcus Hans, Prithiv T. Sukumar +3
The structure and chemistry of grain boundaries (GBs) are crucial in determining polycrystalline materials' properties. Faceting and solute segregation to minimize the GB energy is…
-guided X-ray photoelectron spectroscopy quantification of Ti vacancies in TiON thin films
Pavel Ondračka, Marcus Hans, Damian M. Holzapfel +3
calculations were employed to investigate the effect of oxygen concentration dependent Ti vacancies formation on the core electron binding energy shifts in cub…
Electronic excitation of transition metal nitrides by light ions with keV energies
Barbara Bruckner, Marcus Hans, Tomas Nyberg +3
We investigated the specific electronic energy deposition by protons and He ions with keV energies in different transition metal nitrides of technological interest. Data were obtai…