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144 Publications
2025 | Journal Article | LibreCat-ID: 58510 | 
Lead-Free Ceramics in Prestressed Ultrasonic Transducers
C. Scheidemann, P. Bornmann, W. Littmann, T. Hemsel, Actuators 14 (2025).
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C. Scheidemann, P. Bornmann, W. Littmann, T. Hemsel, Actuators 14 (2025).
2025 | Conference Paper | LibreCat-ID: 62300
Estimation of third order elastic constants of piezoceramics using DC biased impedance measurements
L. Claes, J. Hölscher, O. Friesen, C. Scheidemann, T. Hemsel, B. Henning, in: 2025 International Congress on Ultrasonics, AMA Service GmbH, Paderborn, 2025, pp. 142–145.
LibreCat
| DOI
L. Claes, J. Hölscher, O. Friesen, C. Scheidemann, T. Hemsel, B. Henning, in: 2025 International Congress on Ultrasonics, AMA Service GmbH, Paderborn, 2025, pp. 142–145.
2025 | Conference Paper | LibreCat-ID: 64798 |
Bolted Langevin transducers with leadfree piezoelectric ceramics
C. Scheidemann, P. Bornmann, W. Littmann, T. Hemsel, in: 2025.
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C. Scheidemann, P. Bornmann, W. Littmann, T. Hemsel, in: 2025.
2025 | Conference Paper | LibreCat-ID: 64800 |
Intensive ultrasonic cleaning of surfaces by means of lead-free ultrasonic transducer with focussing sonotrode
T. Hemsel, C. Scheidemann, P. Bornmann, W. Littmann, W. Sextro, in: 2025.
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T. Hemsel, C. Scheidemann, P. Bornmann, W. Littmann, W. Sextro, in: 2025.
2025 | Conference Paper | LibreCat-ID: 61755 |
Time dependent material characteristics of prestressed piezoelectric ceramics in langevin transducers
C. Scheidemann, T. Hemsel, W. Sextro, in: 2025.
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C. Scheidemann, T. Hemsel, W. Sextro, in: 2025.
2025 | Conference Paper | LibreCat-ID: 61757 |
Investigation of the Setting Behaviour of Mechanically Biased Piezoelectric Ultrasonic Transducers
C. Scheidemann, J. Porzenheim, T. Hemsel, W. Sextro, in: 2025.
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C. Scheidemann, J. Porzenheim, T. Hemsel, W. Sextro, in: 2025.
2025 | Conference Paper | LibreCat-ID: 64803
Innovative lead-free ultrasonic bending transducers for low to medium power applications
P. Bornmann, W. Littmann, C. Scheidemann, T. Hemsel, in: 2025.
LibreCat
P. Bornmann, W. Littmann, C. Scheidemann, T. Hemsel, in: 2025.
2025 | Conference Paper | LibreCat-ID: 64802
Power ultrasonic actuators with suddenly changing loads: How to control the amplitudes in resonance, antiresonance, or in-between
W. Littmann, P. Bornmann, T. Hemsel, C. Scheidemann, in: 2025.
LibreCat
W. Littmann, P. Bornmann, T. Hemsel, C. Scheidemann, in: 2025.
2025 | Conference Paper | LibreCat-ID: 64804
Modellgestützte Optimierung eines Ultraschall-Torsionsschweißsystems
M.D. Dohmen, P. Bornmann, W. Littmann, T. Hemsel, W. Sextro, in: 2025.
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M.D. Dohmen, P. Bornmann, W. Littmann, T. Hemsel, W. Sextro, in: 2025.
2025 | Conference Paper | LibreCat-ID: 62299
Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer
O. Friesen, C. Scheidemann, L. Claes, T. Hemsel, B. Henning, in: 2025 International Congress on Ultrasonics, AMA Service GmbH, Paderborn, 2025, pp. 138–141.
LibreCat
| DOI
O. Friesen, C. Scheidemann, L. Claes, T. Hemsel, B. Henning, in: 2025 International Congress on Ultrasonics, AMA Service GmbH, Paderborn, 2025, pp. 138–141.
2024 | Journal Article | LibreCat-ID: 51518
Diagnostics of Piezoelectric Bending Actuators Subjected to Varying Operating Conditions
O.K. Aimiyekagbon, A. Bender, T. Hemsel, W. Sextro, Electronics 13 (2024).
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| DOI
O.K. Aimiyekagbon, A. Bender, T. Hemsel, W. Sextro, Electronics 13 (2024).
2024 | Journal Article | LibreCat-ID: 57467
The Influence of Ultrasonic Irradiation of a 316L Weld Pool Produced by DED on the Mechanical Properties of the Produced Component
D. Lehnert, C. Bödger, P. Pabel, C. Scheidemann, T. Hemsel, S. Gnaase, D. Kostka, T. Tröster, Crystals 14 (2024).
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D. Lehnert, C. Bödger, P. Pabel, C. Scheidemann, T. Hemsel, S. Gnaase, D. Kostka, T. Tröster, Crystals 14 (2024).
2024 | Conference Paper | LibreCat-ID: 61756 |
Characteristic behavior of lead-free and lead-containing piezo ring ceramics in ultrasonic transducers
C. Scheidemann, T. Hemsel, W. Sextro, in: 2024.
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C. Scheidemann, T. Hemsel, W. Sextro, in: 2024.
2024 | Conference Paper | LibreCat-ID: 56834 |
Estimation of temperature-dependent piezoelectric material parameters using ring-shaped specimens
O. Friesen, L. Claes, C. Scheidemann, N. Feldmann, T. Hemsel, B. Henning, in: 2023 International Congress on Ultrasonics, Beijing, China, IOP Publishing, 2024, p. 012125.
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O. Friesen, L. Claes, C. Scheidemann, N. Feldmann, T. Hemsel, B. Henning, in: 2023 International Congress on Ultrasonics, Beijing, China, IOP Publishing, 2024, p. 012125.
2023 | Conference Abstract | LibreCat-ID: 51119
Experimental Investigation of Bond Formation and Wire Deformation in the Ultrasonic Wire Bonding Process
C. Scheidemann, O.E.C. Hagedorn, T. Hemsel, W. Sextro, in: 2023.
LibreCat
C. Scheidemann, O.E.C. Hagedorn, T. Hemsel, W. Sextro, in: 2023.
2023 | Conference Abstract | LibreCat-ID: 47234
Burst Mode of Ultrasonic Resonant Oscillations for Stimulation and Destruction of Tumor Cells
B. Sehlmeyer, R. Kampmann, C. Scheidemann, T. Hemsel, M. Getzlaff, in: Deutsche Physikalische Gesellschaft e. V. (Ed.), Frühjahrstagung 2023, Sektion Kondensierte Materie (SKM), 2023.
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B. Sehlmeyer, R. Kampmann, C. Scheidemann, T. Hemsel, M. Getzlaff, in: Deutsche Physikalische Gesellschaft e. V. (Ed.), Frühjahrstagung 2023, Sektion Kondensierte Materie (SKM), 2023.
2023 | Conference Abstract | LibreCat-ID: 47235
Burst Mode Characteristics of an Ultrasonic Transducer for Treatment of Cancer Cells
R. Kampmann, B. Sehlmeyer, C. Scheidemann, T. Hemsel, M. Getzlaff, in: Deutsche Physikalische Gesellschaft e. V. (Ed.), Frühjahrstagung 2023, Sektion Kondensierte Marterie (SKM), 2023.
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R. Kampmann, B. Sehlmeyer, C. Scheidemann, T. Hemsel, M. Getzlaff, in: Deutsche Physikalische Gesellschaft e. V. (Ed.), Frühjahrstagung 2023, Sektion Kondensierte Marterie (SKM), 2023.
2023 | Conference Paper | LibreCat-ID: 51117 |
Influence of Temperature and Pre-Stress on the Piezoelectric Material Behavior of Ring-Shaped Ceramics
C. Scheidemann, T. Hemsel, O. Friesen, L. Claes, W. Sextro, in: 2023.
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C. Scheidemann, T. Hemsel, O. Friesen, L. Claes, W. Sextro, in: 2023.
2022 | Book Chapter | LibreCat-ID: 33500
Piezoelectric Ultrasonic Power Transducers
T. Hemsel, J. Twiefel, in: Reference Module in Materials Science and Materials Engineering, Elsevier, 2022.
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T. Hemsel, J. Twiefel, in: Reference Module in Materials Science and Materials Engineering, Elsevier, 2022.
2022 | Report | LibreCat-ID: 52045
Modellbasierte Ermittlung optimaler Prozessparameter für neuartige Ultraschallbondverbindungen
C. Scheidemann, T. Hemsel, W. Sextro, Modellbasierte Ermittlung optimaler Prozessparameter für neuartige Ultraschallbondverbindungen, LibreCat University, 2022.
LibreCat
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C. Scheidemann, T. Hemsel, W. Sextro, Modellbasierte Ermittlung optimaler Prozessparameter für neuartige Ultraschallbondverbindungen, LibreCat University, 2022.