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27 Publications
2026 | Newspaper Article | LibreCat-ID: 66428
Dohmen, Markus Daniel, Peter Bornmann, Walter Littmann, Tobias Hemsel, and Walter Sextro. “Modellgestützte Optimierung eines Ultraschall-Torsionsschweißsystems.” PLUS-Elektronikfertigung, 2026.
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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: 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: 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: 64803
Bornmann, Peter, Walter Littmann, Claus Scheidemann, and Tobias Hemsel. “Innovative Lead-Free Ultrasonic Bending Transducers for Low to Medium Power Applications,” 2025.
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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.
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2019 | Conference Paper | LibreCat-ID: 14852
Dunst, Paul, Peter Bornmann, Tobias Hemsel, Walter Littmann, and Walter Sextro. “Atomization of Fluids with Ultrasound.” In Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MFHS2019), edited by Joost Lötters and Gerald Urban, 140–43. Enschede, The Netherlands, 2019.
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2019 | Conference Paper | LibreCat-ID: 10258
Dunst, Paul, Tobias Hemsel, Peter Bornmann, Walter Littmann, and Walter Sextro. “Modellbasierte Und Experimentelle Charakterisierung von Intensiven Ultraschall-Stehwellenfeldern Für Die Zerstäubung Hochviskoser Flüssigkeiten.” In DAGA 2019, 2019.
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2019 | Dissertation | LibreCat-ID: 10000
Bornmann, Peter. Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen. Shaker, 2019.
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2018 | Journal Article | LibreCat-ID: 9990
Dunst, Paul, Peter Bornmann, Tobias Hemsel, Walter. Littmann, and Walter Sextro. “Vibration Assisted Dosing, Mixing and Transport of Dry Fine Powders.” ACTUATOR 2018; 16th International Conference on New Actuators, 2018, 142–45.
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2018 | Journal Article | LibreCat-ID: 9991
Dunst, Paul, Peter Bornmann, Tobias Hemsel, and Walter Sextro. “Vibration-Assisted Handling of Dry Fine Powders.” Actuators 2018, 7(2)., 2018, 1–11. https://doi.org/10.3390/act7020018.
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2016 | Conference Paper | LibreCat-ID: 9958
Dunst, Paul, Walter Sextro, Peter Bornmann, Tobias Hemsel, and Walter Littmann. “Transportation of Dry Fine Powders by Coordinated Friction Manipulation.” In PAMM Proc. Appl. Math. Mech. 16, 635–36. Braunschweig, 2016. https://doi.org/10.1002/pamm.201610306.
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2015 | Journal Article | LibreCat-ID: 9944
Bornmann, Peter, Tobias Hemsel, Walter Sextro, Gianluca Memoli, Mark Hodnett, and Bajram Zeqiri. “Kavitationsdetektion Mittels Self-Sensing-Ultraschallwandler.” Tm - Technisches Messen 82, no. 2 (2015): 73–84. https://doi.org/10.1515/teme-2015-0017.
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2015 | Journal Article | LibreCat-ID: 9948
Kudo, Ryo, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Thick KNbO 3 Films Deposited by Ultrasonic-Assisted Hydrothermal Method.” Acoustical Science and Technology 36, no. 3 (2015): 262–64. https://doi.org/10.1250/ast.36.262.
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2014 | Conference Paper | LibreCat-ID: 9869
Bornmann, Peter, Tobias Hemsel, Walter Sextro, Gianluca Memoli, Mark Hodnett, and Bajram Zeqiri. “Self-Sensing Ultrasound Transducer for Cavitation Detection.” In 2014 IEEE International Ultrasonics Symposium Proceedings, 663–66, 2014. https://doi.org/10.1109/ULTSYM.2014.0163.
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2014 | Journal Article | LibreCat-ID: 9874
Hemsel, Tobias, Peter Bornmann, Takeshi Morita, Christoph Sondermann-Wölke, and Walter Sextro. “Reliability Analysis of Ultrasonic Power Transducers.” Archive of Applied Mechanics, 2014, 1–7. https://doi.org/10.1007/s00419-014-0965-4.
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2014 | Journal Article | LibreCat-ID: 9878
Isobe, G., Takafumi Maeda, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Synthesis of Lead-Free Piezoelectric Powders by Ultrasonic-Assisted Hydrothermal Method and Properties of Sintered (K0.48Na0.52)NBO3 Ceramics.” Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions On 61, no. 2 (2014): 225–30. https://doi.org/10.1109/TUFFC.2014.6722608.
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2013 | Journal Article | LibreCat-ID: 9866
Ohta, Kanako, Gaku Isobe, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Study on Optimizing Ultrasonic Irradiation Period for Thick Polycrystalline PZT Film by Hydrothermal Method.” Ultrasonics 53, no. 4 (2013): 837–41. https://doi.org/10.1016/j.ultras.2012.12.003.
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2013 | Journal Article | LibreCat-ID: 9867
Yokouchi, Yuriko, Takafumi Maeda, Peter Bornmann, Tobias Hemsel, and Takeshi Morita. “Piezoelectric Properties of CuO-Doped (K,Na)NbO3 Lead-Free Ceramics Synthesized with Hydrothermal Powders.” Japanese Journal of Applied Physics 52, no. 7S (2013). https://doi.org/10.7567/JJAP.52.07HB03.
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