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Kazak, Oleg; Halbedel, Bernd
Modelling and control of electro vortex flows in DC steel making furnaces. - In: Workshop Elektroprozesstechnik, (2016), 5, insges. 8 S.

Rädlein, Edda; Roger, Ulrich
Reinigung von Halbzeugen und Produkten aus Glas : Schlussbericht zu dem IGF-Vorhaben der Forschungsstelle(n) Technische Universität Ilmenau Fachgebiet Anorganisch-nichtmetallische Werkstoffe und Hüttentechnische Vereinigung der Deutschen Glasindustrie e.V.. - Ilmenau : Technische Universität Ilmenau Fachgebiet Anorganisch-nichtmetallische Werkstoffe. - 1 Online-Ressource (144 Seiten, 10 MB)Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
Westphalen, Jasper; Junghähnel, Manuela; Rädlein, Edda
Study of the properties of sputtered ZnO:Al layers on ultra-thin glass. - In: 80th Annual Meeting of the DPG and DPG-Frühjahrstagung (Spring Meeting) of the Condensed Matter Section (SKM), (2016), DS 16.7, insges. 1 S.

Wiederhold, Andreas; Ebert, Reschad; Weidner, Markus; Halbedel, Bernd; Fröhlich, Thomas; Resagk, Christian
Influence of the flow profile to Lorentz force velocimetry for weakly conducting fluids - an experimental validation. - In: Measurement science and technology, ISSN 1361-6501, Bd. 27 (2016), 12, S. 125306, insges. 9 S.

The Lorentz force velocimetry (LFV) is a highly feasible contactless method for measuring flow rate in a pipe or in a channel. This method has been established for liquid metal flows but also for weakly conducting electrolytes where the Lorentz force amplitudes are typically six orders smaller than the ones from liquid metal flows. Due to an increased resolution of the Lorentz force measurements which was the main focus of research in the last years, now it is possible to investigate the influence of the flow profile on the amplitude of the Lorentz force. Even if there is a semi-theoretical approach an experimental validation is still outstanding. Therefore we have tested symmetric and asymmetric flow profiles to test the LFV for weakly conducting fluids for typical industrial flows. Salt water has been used as a test electrolyte with constant values of the electrical conductivity from 0.035 to 20 S m-1 and of the flow velocity in a range of 0.5-3 m s-1. We confirmed by extensive measurements that LFV is a suitable method for flow measurements even for different flow profiles within 5% measurement uncertainty. For a wide range of applications in research and industry the LFV should be not sensitive to various flow profiles.
Inayat, Alexandra; Reinhardt, Björn; Herwig, Jan; Küster, Christian; Uhlig, Hans; Krenkel, Sharon; Rädlein, Edda; Enke, Dirk
Recent advances in the synthesis of hierarchically porous silica materials on the basis of porous glasses. - In: New journal of chemistry, ISSN 1369-9261, Bd. 40 (2016), 5, S. 4095-4114
Vasilyan, Suren; Rivero, Michel; Schleichert, Jan; Halbedel, Bernd; Fröhlich, Thomas
High-precision horizontally directed force measurements for high dead loads based on a differential electromagnetic force compensation system. - In: Measurement science and technology, ISSN 1361-6501, Bd. 27 (2016), 4, S. 045107, insges. 13 S.
Bartsch, Heike; Brokmann, Ulrike; Goj, Boris; Weiß, Robert; Rädlein, Edda; Müller, Jens
Sol gel thin films on LTCC ceramic multilayers enable their use as thin film substrates. - In: 2015 European Microelectronics Packaging Conference (EMPC), ISBN 978-0-9568086-2-2, (2015), insges. 6 S.
Soubeih, Senan; Lüdtke, Ulrich; Halbedel, Bernd
Improving residence time distribution in glass melting tanks using additionally generated Lorentz forces. - In: Journal of chemistry and chemical engineering, ISSN 1934-7383, Bd. 9 (2015), 3, S. 203-210
Torres, José Oskar; Halbedel, Bernd; Weber, Claudia; Reche, Reinhart
High-performance forehearth coloring using Lorentz forces. - In: Heat processing, ISSN 1611-616X, (2015), 4, S. 85-89

In the production of coloring glasses molten white glass which flows out of the glass tank is colored in the melt zone of the forehearth by means of color concentrates (frits). It was observed that such frits tend to sink, degrading the glass coloring because the stirring battery needs a certain frits level to do a good homogenization, and contaminating the glass when they sediment. A suitable Lorentz force density distribution against the glass flow generated in the melt zone of the forehearth can be used to prevent the sinking process by a push-up effect and therefore to improve the input flow conditions of the stirring battery. On the basis of a verified numerical model which included the boundary conditions, process parameter and temperature depending material properties a suitable arrangement of electrodes, located in the molten glass, and coils, located in the insulation material of the forehearth are created and the effects of the generated Lorentz forces distribution on the temperature and velocity distribution are computed and discussed.

Hülsenberg, Dagmar; Rädlein, Edda
Das Fachgebiet Anorganisch-nichtmetallische Werkstoffe. - In: Jenaer Jahrbuch zur Technik- und Industriegeschichte, ISSN 2198-6746, Bd. 18 (2015), S. 175-194