Lorentz Force Velocimetry using a bulk HTS magnet system. - In: 9th International Symposium on Electromagnetic Processing of Materials (EPM2018)14-18 October 2018, Hyogo, Japan, (2018), S. 012009, insges. 4 S.
Design of the Lorentz Force Flow-meter (LFF-meter) for weakly-conducting and slow-flowing fluids, e.g., glass melts, place stringent requirements on the magnetic field generation and force measurements. In the scope of the Research Training Group "Lorentz Force Velocimetry (LFV) and Lorentz Force Eddy Current Testing", a LFF-meter considers: first - a magnetic field source, where NdFeB permanents magnet system is replaced with a bulk high-temperature superconductors (HTS), which promise higher flux densities (> 1 T) and thus higher output force resolution; second - a high-precision force measurements, where electromagnetic force compensation weighing balance (EMFC) setup is replaced with torsion balance based system (TFMS), which claims an increase of the force resolution up to 1 nN. Furthermore, in order to raise the issue of the limiting total mass (which is always an issue for high-precision force measurements), the bulk HTS and TFMS are merged within the cryostat. This work discusses LFV experiments, calculations and numerical simulations, where a magnetic field is generated by the bulk HTS.
https://doi.org/10.1088/1757-899X/424/1/012009
Electromechanical milling - conception and design of the excitation system. - In: 9th International Symposium on Electromagnetic Processing of Materials (EPM2018)14-18 October 2018, Hyogo, Japan, (2018), S. 012050, insges. 5 S.
The novel electromechanical milling principle is a solution providing reduced energy consumption with milling beads directly moved with a time- and local-variable magnetic field, which is generated in a working chamber by an external, electrical excitation system. Hence, the main design parameters of such machines for electromechanical milling (so-called EMZ plants) must be derived from the time- and local-variable magnetic flux density, the resulting vector gradient and the electromagnetic force distribution in the process room. For the calculation and optimization of these distributions we developed a numerical model on the basis of the commercial software tool ANSYS Maxwell®. We verified this model with experimental measurements of the electromagnetic field in the process room. Furthermore, we have studied the influence of the excitation system design on the vector gradient distribution and discuss selected results in this paper. The study identifies potentials for the further improvement of electromechanical units built in the past.
https://doi.org/10.1088/1757-899X/424/1/012050
In-situ and operando near sulfur K-edge X-ray absorption spectrometry of Li-S battery coin cells. - In: Joint Meeting of the DPG and EPS Condensed Matter Divisions together with the Statistical and Nonlinear Physics Division of the EPS and the Working Groups: Equal Opportunities, Industry and Business, Young DPG, Philosophy of Physics, (all DPG) EPS Young Minds, EPS History of Physics Group, (2018), O 8.2
Electrical characterization of semiconductor nanowires with axial pn-junction. - In: Joint Meeting of the DPG and EPS Condensed Matter Divisions together with the Statistical and Nonlinear Physics Division of the EPS and the Working Groups: Equal Opportunities, Industry and Business, Young DPG, Philosophy of Physics, (all DPG) EPS Young Minds, EPS History of Physics Group, (2018), HL 19.13
Rotational twins in III-V/Si(111) virtual substrates and their impact on subsequent III-V nanowire growth. - In: Joint Meeting of the DPG and EPS Condensed Matter Divisions together with the Statistical and Nonlinear Physics Division of the EPS and the Working Groups: Equal Opportunities, Industry and Business, Young DPG, Philosophy of Physics, (all DPG) EPS Young Minds, EPS History of Physics Group, (2018), HL 33.25
Ultrafast point-projection electron microscopy with a time-of-flight delay-line detector. - In: Joint Meeting of the DPG and EPS Condensed Matter Divisions together with the Statistical and Nonlinear Physics Division of the EPS and the Working Groups: Equal Opportunities, Industry and Business, Young DPG, Philosophy of Physics, (all DPG) EPS Young Minds, EPS History of Physics Group, (2018), O 63.2
Resistance profiling along tapered nanowires: multi-tip-technique vs. transmission line method. - In: Joint Meeting of the DPG and EPS Condensed Matter Divisions together with the Statistical and Nonlinear Physics Division of the EPS and the Working Groups: Equal Opportunities, Industry and Business, Young DPG, Philosophy of Physics, (all DPG) EPS Young Minds, EPS History of Physics Group, (2018), HL 24.25
III/V-on-Si(100) heterointerfaces and single-domain virtual substrates. - In: Joint Meeting of the DPG and EPS Condensed Matter Divisions together with the Statistical and Nonlinear Physics Division of the EPS and the Working Groups: Equal Opportunities, Industry and Business, Young DPG, Philosophy of Physics, (all DPG) EPS Young Minds, EPS History of Physics Group, (2018), O 42.22
In situ study of AlxGa1-xP nucleation on As-modified Si(100) 2˚ surfaces. - In: Joint Meeting of the DPG and EPS Condensed Matter Divisions together with the Statistical and Nonlinear Physics Division of the EPS and the Working Groups: Equal Opportunities, Industry and Business, Young DPG, Philosophy of Physics, (all DPG) EPS Young Minds, EPS History of Physics Group, (2018), O 33.5
Perturbed angular correlation studies of H2 plasma treated rutile. - In: Joint Meeting of the DPG and EPS Condensed Matter Divisions together with the Statistical and Nonlinear Physics Division of the EPS and the Working Groups: Equal Opportunities, Industry and Business, Young DPG, Philosophy of Physics, (all DPG) EPS Young Minds, EPS History of Physics Group, (2018), DS 31.17
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