Modellgestützte Optimierung eines Ultraschall-Torsionsschweißsystems
M.D. Dohmen, P. Bornmann, W. Littmann, T. Hemsel, W. Sextro, PLUS-Elektronikfertigung (2026) 432–435.

Lead-Free Ceramics in Prestressed Ultrasonic Transducers
C. Scheidemann, P. Bornmann, W. Littmann, T. Hemsel, Actuators 14 (2025).

Bolted Langevin transducers with leadfree piezoelectric ceramics
C. Scheidemann, P. Bornmann, W. Littmann, T. Hemsel, in: 2025.

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.

Modellgestützte Optimierung eines Ultraschall-Torsionsschweißsystems
M.D. Dohmen, P. Bornmann, W. Littmann, T. Hemsel, W. Sextro, in: 2025.

Innovative lead-free ultrasonic bending transducers for low to medium power applications
P. Bornmann, W. Littmann, C. Scheidemann, T. Hemsel, in: 2025.

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.

Atomization of Fluids with Ultrasound
P. Dunst, P. Bornmann, T. Hemsel, W. Littmann, W. Sextro, in: J. Lötters, G. Urban (Eds.), Conference Proceedings - The 4th Conference on MicroFluidic Handling Systems (MF), Enschede, The Netherlands, 2019, pp. 140–143.

Modellbasierte und experimentelle Charakterisierung von intensiven Ultraschall-Stehwellenfeldern für die Zerstäubung hochviskoser Flüssigkeiten
P. Dunst, T. Hemsel, P. Bornmann, W. Littmann, W. Sextro, in: DAGA 2019, 2019.

Modellierung und experimentelle Charakterisierung der Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen
P. Bornmann, Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen, Shaker, 2019.

Vibration Assisted Dosing, Mixing and Transport of Dry Fine Powders
P. Dunst, P. Bornmann, T. Hemsel, W. Littmann, W. Sextro, ACTUATOR 2018; 16th International Conference on New Actuators (2018) 142–145.

Vibration-Assisted Handling of Dry Fine Powders
P. Dunst, P. Bornmann, T. Hemsel, W. Sextro, Actuators 2018, 7(2). (2018) 1–11.

Transportation of dry fine powders by coordinated friction manipulation
P. Dunst, W. Sextro, P. Bornmann, T. Hemsel, W. Littmann, in: PAMM Proc. Appl. Math. Mech. 16, Braunschweig, 2016, pp. 635–636.

Kavitationsdetektion mittels Self-Sensing-Ultraschallwandler
P. Bornmann, T. Hemsel, W. Sextro, G. Memoli, M. Hodnett, B. Zeqiri, Tm - Technisches Messen 82 (2015) 73–84.

Thick KNbO 3 films deposited by ultrasonic-assisted hydrothermal method
R. Kudo, P. Bornmann, T. Hemsel, T. Morita, Acoustical Science and Technology 36 (2015) 262–264.

Self-Sensing Ultrasound Transducer for Cavitation Detection
P. Bornmann, T. Hemsel, W. Sextro, G. Memoli, M. Hodnett, B. Zeqiri, in: 2014 IEEE International Ultrasonics Symposium Proceedings, 2014, pp. 663–666.

Reliability analysis of ultrasonic power transducers
T. Hemsel, P. Bornmann, T. Morita, C. Sondermann-Wölke, W. Sextro, Archive of Applied Mechanics (2014) 1–7.

Synthesis of lead-free piezoelectric powders by ultrasonic-assisted hydrothermal method and properties of sintered (K0.48N.52)NBO3 ceramics
G. Isobe, T. Maeda, P. Bornmann, T. Hemsel, T. Morita, Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions On 61 (2014) 225–230.

Study on optimizing ultrasonic irradiation period for thick polycrystalline PZT film by hydrothermal method
K. Ohta, G. Isobe, P. Bornmann, T. Hemsel, T. Morita, Ultrasonics 53 (2013) 837–841.

Piezoelectric Properties of CuO-Doped (K,Na)NbO3 Lead-Free Ceramics Synthesized with Hydrothermal Powders
Y. Yokouchi, T. Maeda, P. Bornmann, T. Hemsel, T. Morita, Japanese Journal of Applied Physics 52 (2013).