Dokumente Fakultät für Physik (inkl. GAUSS) nach Gutachter "Volkert, Cynthia Prof."
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Avalanche Dynamics and Magnetoelastic Coupling in Metallic Glasses
(2018-02-19)This work is devoted to the study of the magnetoelastic coupling in metallic glasses. Such study is done by means of the statistical analysis of the intermittency of the deformation signal yield as a consequence of a ... -
Elektrische Quadrupolwechselwirkung in defektreichen und deformierten MAX-Phasen
(2015-10-06)In this work, it is shown how hyperfine interaction methods can be used to in-situ detect defects and deformations even in crystallographically complex materials such as the MAX-Phases, a class of ternary carbides and ... -
Elektronenmikroskopische Untersuchung des Einflusses elektrischer Felder auf das Sinterverhalten von Oxidkeramiken
(2023-11-09)Despite the wide application potential of flash sintering for processing ceramic materials, the physical origins of the effect remain unclear. Therefore, the primary objective of this work is to gain a deeper understanding ... -
Magnetotellurics and Geomagnetic Depth Sounding in Queensland, South Eastern Australia -Evidence for the Tasman Line?
(2011-11-09)The Tasman Line in eastern Australia is commonly defined as the locus of Rodinia- Gondwana breakup. It is a much discussed concept in the geology and tectonics of eastern Australia. However, ... -
Nonlinear Response and Avalanche Behavior in Metallic Glasses
(2017-08-29)The response to different stress amplitudes at temperatures below the glass transition temperature is measured by mechanical oscillatory excitation of Pd40Ni40P20 metallic glass samples in single cantilever bending geometry. ... -
Structure Investigations of LiMn2O4 as Oxygen Evolution Reaction Catalyst
(2023-09-15)The catalytic activity of a material is determined by the electronic structure and atomic arrangements at its surface. In particular, eg occupancy of octahedral cations has been found to be a successful descriptor of the ... -
TEM in-situ Untersuchungen an Ti-Ni basierten Formgedächtnislegierungen
(2018-05-03)Shape memory alloys (SMAs) are named after their ability to recover plastic deformation upon heating and return to their original undeformed shape. The key mechanism responsible for this behavior is a reversible diffusionless ... -
The microstructural investigation of continuous-wave laser irradiated silicon rich silicon oxide
(2017-12-21)In this thesis, we systematically studied optical and structural properties of continuous wave laser irradiated silicon rich silicon oxide by a series of characterization methods: AFM, micro-Raman, micro-PL, HCDF, HRTEM, ... -
Untersuchungen der Wärmekapazität von Nanopartikeln und Multilagen mit der nanokalorimetrischen Methode
(2018-07-23)The heat capacity of samples with characteristic sizes in the nanometer range can differ strongly from the bulk heat capacity. For small samples, surface phonons and mechanical strain have an important effect on the phonon ...