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144 Publications
2025 | Journal Article | LibreCat-ID: 58510 | 
Scheidemann, Claus, Peter Bornmann, Walter Littmann, and Tobias Hemsel. “Lead-Free Ceramics in Prestressed Ultrasonic Transducers.” Actuators 14, no. 2 (2025). https://doi.org/10.3390/act14020055.
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2025 | Conference Paper | LibreCat-ID: 62300
Claes, Leander, Jonas Hölscher, Olga Friesen, Claus Scheidemann, Tobias Hemsel, and Bernd Henning. “Estimation of Third Order Elastic Constants of Piezoceramics Using DC Biased Impedance Measurements.” In 2025 International Congress on Ultrasonics, 142–145. Paderborn: AMA Service GmbH, 2025. https://doi.org/10.5162/ultrasonic2025/a18-a6.
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2025 | Conference Paper | LibreCat-ID: 64798 |
Scheidemann, Claus, Peter Bornmann, Walter Littmann, and Tobias Hemsel. “Bolted Langevin Transducers with Leadfree Piezoelectric Ceramics,” 2025.
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2025 | Conference Paper | LibreCat-ID: 64800 |
Hemsel, Tobias, Claus Scheidemann, Peter Bornmann, Walter Littmann, and Walter Sextro. “Intensive Ultrasonic Cleaning of Surfaces by Means of Lead-Free Ultrasonic Transducer with Focussing Sonotrode,” 2025.
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2025 | Conference Paper | LibreCat-ID: 61755 |
Scheidemann, Claus, Tobias Hemsel, and Walter Sextro. “Time Dependent Material Characteristics of Prestressed Piezoelectric Ceramics in Langevin Transducers,” 2025.
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2025 | Conference Paper | LibreCat-ID: 61757 |
Scheidemann, Claus, Julius Porzenheim, Tobias Hemsel, and Walter Sextro. “Investigation of the Setting Behaviour of Mechanically Biased Piezoelectric Ultrasonic Transducers,” 2025.
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2025 | Conference Paper | LibreCat-ID: 64803
Bornmann, Peter, Walter Littmann, Claus Scheidemann, and Tobias Hemsel. “Innovative Lead-Free Ultrasonic Bending Transducers for Low to Medium Power Applications,” 2025.
LibreCat
2025 | Conference Paper | LibreCat-ID: 64802
Littmann, Walter, Peter Bornmann, Tobias Hemsel, and Claus Scheidemann. “Power Ultrasonic Actuators with Suddenly Changing Loads: How to Control the Amplitudes in Resonance, Antiresonance, or in-Between,” 2025.
LibreCat
2025 | Conference Paper | LibreCat-ID: 64804
Dohmen, Markus Daniel, Peter Bornmann, Walter Littmann, Tobias Hemsel, and Walter Sextro. “Modellgestützte Optimierung Eines Ultraschall-Torsionsschweißsystems,” 2025.
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2025 | Conference Paper | LibreCat-ID: 62299
Friesen, Olga, Claus Scheidemann, Leander Claes, Tobias Hemsel, and Bernd Henning. “Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer.” In 2025 International Congress on Ultrasonics, 138–141. Paderborn: AMA Service GmbH, 2025. https://doi.org/10.5162/ultrasonic2025/a18-a4.
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2024 | Journal Article | LibreCat-ID: 51518
Aimiyekagbon, Osarenren Kennedy, Amelie Bender, Tobias Hemsel, and Walter Sextro. “Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions.” Electronics 13, no. 3 (2024). https://doi.org/10.3390/electronics13030521.
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2024 | Journal Article | LibreCat-ID: 57467
Lehnert, Dennis, Christian Bödger, Philipp Pabel, Claus Scheidemann, Tobias Hemsel, Stefan Gnaase, David Kostka, and Thomas Tröster. “The Influence of Ultrasonic Irradiation of a 316L Weld Pool Produced by DED on the Mechanical Properties of the Produced Component.” Crystals 14, no. 11 (2024). https://doi.org/10.3390/cryst14111001.
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2024 | Conference Paper | LibreCat-ID: 61756 |
Scheidemann, Claus, Tobias Hemsel, and Walter Sextro. “Characteristic Behavior of Lead-Free and Lead-Containing Piezo Ring Ceramics in Ultrasonic Transducers,” 2024.
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2024 | Conference Paper | LibreCat-ID: 56834 |
Friesen, Olga, Leander Claes, Claus Scheidemann, Nadine Feldmann, Tobias Hemsel, and Bernd Henning. “Estimation of Temperature-Dependent Piezoelectric Material Parameters Using Ring-Shaped Specimens.” In 2023 International Congress on Ultrasonics, Beijing, China, 2822:012125. IOP Publishing, 2024. https://doi.org/10.1088/1742-6596/2822/1/012125.
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2023 | Conference Abstract | LibreCat-ID: 51119
Scheidemann, Claus, Oliver Ernst Caspar Hagedorn, Tobias Hemsel, and Walter Sextro. “Experimental Investigation of Bond Formation and Wire Deformation in the Ultrasonic Wire Bonding Process,” 2023.
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2023 | Conference Abstract | LibreCat-ID: 47234
Sehlmeyer, Birte, Rebecca Kampmann, Claus Scheidemann, Tobias Hemsel, and Mathias Getzlaff. “Burst Mode of Ultrasonic Resonant Oscillations for Stimulation and Destruction of Tumor Cells.” In Frühjahrstagung 2023, Sektion Kondensierte Materie (SKM), edited by Deutsche Physikalische Gesellschaft e. V., 2023.
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2023 | Conference Abstract | LibreCat-ID: 47235
Kampmann, Rebecca, Birte Sehlmeyer, Claus Scheidemann, Tobias Hemsel, and Mathias Getzlaff. “Burst Mode Characteristics of an Ultrasonic Transducer for Treatment of Cancer Cells.” In Frühjahrstagung 2023, Sektion Kondensierte Marterie (SKM), edited by Deutsche Physikalische Gesellschaft e. V., 2023.
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2023 | Conference Paper | LibreCat-ID: 51117 |
Scheidemann, Claus, Tobias Hemsel, Olga Friesen, Leander Claes, and Walter Sextro. “Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics,” 2023.
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2022 | Book Chapter | LibreCat-ID: 33500
Hemsel, Tobias, and Jens Twiefel. “Piezoelectric Ultrasonic Power Transducers.” In Reference Module in Materials Science and Materials Engineering. Elsevier, 2022. https://doi.org/10.1016/b978-0-12-819728-8.00047-4.
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2022 | Report | LibreCat-ID: 52045
Scheidemann, Claus, Tobias Hemsel, and Walter Sextro. Modellbasierte Ermittlung optimaler Prozessparameter für neuartige Ultraschallbondverbindungen. LibreCat University, 2022. https://doi.org/10.2314/KXP:1879655276.
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