Research Data Repository of Saxon Universities
OPARA is the Open Access Repository and Archive for Research Data of Saxon Universities.
Researchers of Saxon Universities can either publish their research data on OPARA, or archive it here to comply with requirements of funding acencies and good scientic practice, without public access.
You can find the documentation of this service at the ZIH Data Compendium websites. If you need suppourt using OPARA please contact the Servicedesk of TU Dresden.
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Recent Submissions
Data for "Phase diagram of magnetis $S^3$ Skyrmions on three-dimensional lattices and the toroidal antiSkyrmion"
(Technische Universität Dresden, 2026-06-25) Francini, Niccolo; Bolognesi, Stefano; Gudnason, Sven Bjarke; Menta, Roberto
The archive contains the data used to construct Figs. of the manuscript "Phase diagram of magnetis $S^3$ Skyrmions on three-dimensional lattices and the toroidal antiSkyrmion" by N. Francini, S. Bolognesi, S.B. Gudnason, and R. Menta [arXiv:2606.07740]
Experimental Materials for “Breaking the Silence with Authenticity”: A Scenario-Based Team Experiment Evaluating a Leadership and Employee Training
(Technische Universität Dresden, 2026-06-25) Ledermann, Franca; Wegge, Jürgen; Dörfel, Denise
This archive contains experimental materials for a scenario-based team experiment evaluating an authenticity-based online training for leaders and employees in the context of healthcare. The corresponding study addresses employee silence as an emotionally embedded phenomenon linked to emotional exhaustion and impaired psychological well-being. Building on research on authenticity, emotional resources, leadership, and team processes, the experiment uses a control group design to examine whether the “Working Authentically” training can strengthen authenticity-related resources and reduce silence and emotional strain in emotionally challenging team interactions.
The material package documents the standardized implementation of a pre-post experimental paradigm with clustered team data, simulated team meetings and role-specific instructions, and both self-report and observational assessment opportunities. It includes materials used to prepare, conduct, and standardize the experimental sessions, such as the experimental procedure SOP, role-specific instructions for leaders, employees, and confederates, meeting materials for the T0 and T1 assessments, participant communication templates, and training files and worksheets for the intervention group provided in separate leader and employee versions.
GRK 2802: Investigations on the corrosion of 316L steel composite materials with MgO/TiO2 ceramic immersed in molten cryolite
(Technische Universität Bergakademie Freiberg, 2026-06-25) Yaroshevskyi, Serhii; Weigelt, Christian; Kerber, Florian; Brachhold, Nora; Zienert, Tilo; Adamczyk, Alexander; Vogt, Daniel; Charitos, Alexandros; Aneziris, Christos G.
Composites based on a steel with 40 vol% magnesia or titania were produced with the ceramics-derived extrusion and pressureless sintering. The materials were tested in a laboratory-scale fused-salt electrolysis cell with a synthetic cryolite in order to identify their potential use as electrode material in the Hall-Heroult process. The highly corrosive atmosphere and salt melt initiated certain corrosion effects in both material variants. The corrosion depth was determined with 1160 μm for magnesia and 463 μm for titania, respectively, after 8 h corrosion test. The initial corrosion includes the complete penetration of the specimens with cryolite and the dissolution of the ceramic component. A pre-oxidation of the specimens containing magnesia depressed the corrosion depth by 75% due to the formation of an aluminium oxide layer in the composite material during corrosion tests. The reduction in corrosion depth by pre-oxidation was less ronounced for the TiO2 composite materials (- 15%).
GRK 2802: Anodes Based On MgO-C Recyclates And 316L Steel For Prospective Aluminium Fused-Salt Electrolysis Application
(Technische Universität Bergakademie Freiberg, 2026-06-25) Yaroshevskyi, Serhii; Gehre, Patrick; Kaiser, Patricia; Brachhold, Nora; Hubálková, Jana; Aneziris, Christos G.
Every year, approx. 28 million tons of used refractories accumulate worldwide. The majority of them are used as aggregates for road construction (downcycling) or are deposited in landfills. For ecological and economic reasons, an increased research potential was identified in recent years, dedicated to increasing the recycling rate and finding new markets and application fields with a higher value of the refractory recyclates. The study presents the current findings of the development of inert electrodes for the aluminum fused-salt electrolysis composed of steel and MgO gained from MgO-C recyclates. To withstand the chemical attack of molten aluminum and cryolitic melts, the metal-ceramic composites were preoxidized (PO) at 800 °C, 900 °C, and 1000 °C. The microstructure after each PO thermal treatment was analyzed. After PO at 800 °C, a (Cr,Fe)3O4 spinel-like phase and Fe-O Mg-O solid solution form. After PO at 900 °C, a larger amount of the Fe-O Mg-O solid solution and a (Cr,Fe)2O3 solid solution around the steel grains was identified. Furthermore, the electrical conductivity of the metal-ceramic-composites preoxidized at 900 °C amounts to 1.49·10^2 S/cm and hence is in the range of carbon, which exhibits a value of 1.54·10^2 S/cm. Additionally, the impact of different preoxidation treatments at 900 °C by applying furnaces equipped with electrical heating, natural gas burner, and microwave plasma burner on the microstructure was investigated.
GRK 2802: Characterization of CrMnNi Steel Powders Obtained via Gas Atomization
(Technische Universität Bergakademie Freiberg, 2026-06-22) Sherstneva, Anastasiia; Quitzke, Caroline; Bellé, Matheus Roberto; Wendler, Marco; Volkova, Olena
To obtain a successful product during additive manufacturing, the powder as a raw material must have the high quality. The purpose of this work is to investigate CrMnNi steel powders obtained by inert gas atomization with nickel content: 3, 6, and 9 wt% and to identify dependencies between the powder size and morphology, solidification structure, and change in chemical composition and thermophysical properties. Particle size distribution is measured by a laser scattering analyzer: d50 value are 82.02, 69.32, and 75.54 μm for powders with 3, 6, and 9 wt%, respectively. Surface tension (ST) measurements are made by maximum bubble pressure method: for steels with 3, 6, and 9 wt% at temperature 1500 °C, ST is 1.01, 1.07, and 1.15 mNm 1, respectively. It is found that the change in particle size affects the chemical composition, the content of the ferromagnetic phase and secondary dendritic arm-spacing. Changes in the content of elements such as S, O, N, and Mn are determined, depending on the diameter of the particles. The influence of changes in content of S, O, and N on the thermophysical properties such as ST is investigated.