Piezoelectric Ultrasonic Power Transducers
T. Hemsel, J. Twiefel, in: Reference Module in Materials Science and Materials Engineering, Elsevier, 2022.

High-velocity operation of piezoelectric inertia motors: experimental validation
M. Hunstig, T. Hemsel, W. Sextro, Archive of Applied Mechanics (2014) 1–9.

High-Velocity Slip-Slip Operation of Piezoelectric Inertia Motors - Experimental Validation
M. Hunstig, T. Hemsel, W. Sextro, in: Proceedings of 10th International Workshop on Piezoelectric Materials and Applications and 8th Energy Harvesting Workshop, Hannover, Germany, 2013, pp. 16–18.

Modelling the friction contact in an inertia motor
M. Hunstig, T. Hemsel, W. Sextro, Journal of Intelligent Material Systems and Structures 24 (2013) 1380–1391.

Stick-slip and slip-slip operation of piezoelectric inertia drives - Part II: Frequency-limited excitation
M. Hunstig, T. Hemsel, W. Sextro, Sensors and Actuators A: Physical 200 (2013) 79–89.

Stick-slip and slip-slip operation of piezoelectric inertia drives - Part I: Ideal Excitation.
M. Hunstig, T. Hemsel, W. Sextro, Sensors and Actuators A: Physical 200 (2013) 90–100.

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).

An efficient simulation technique for high-frequency piezoelectric inertia motors
M. Hunstig, T. Hemsel, W. Sextro, in: Ultrasonics Symposium (IUS), 2012 IEEE International, 2012, pp. 277–280.

Analysis of different operation modes for inertia motors
M. Hunstig, T. Hemsel, W. Sextro, ACTUATOR 2012 Conference Proceedings (2012) 761–764.

Various Aspects of the Placement of a Piezoelectric Material in Composite Actuators, Motors, and Transducers
T. Hemsel, E.G. Lierk, W. Littmann, T. Morita, Journal of Korean Physical Society 57 (2010) 933–937.

Drive Signals for Maximizing the Velocity of Piezoelectric Inertia Motors
M. Hunstig, T. Hemsel, Journal of Korean Physical Society 57 (2010) 938–941.

Parameter Identification and Model Validation for the Piezoelectric Actuator in an Inertia Motor
M. Hunstig, T. Hemsel, Journal of Korean Physical Society 57 (2010) 952–954.

Improving the Performance of Piezoelectric Inertia Motors
M. Hunstig, T. Hemsel, W. Sextro, in: ACTUATOR 2010 Conference Proceedings, 2010, pp. 657–661.

Modellbasierte Entwicklung piezoelektrischer Trägheitsmotoren
M. Hunstig, T. Hemsel, in: J. Gausemeier, F. Rammig,  Wilhelm  Schäfer, A. Trächtler (Eds.), 6. Paderborner Workshop Entwurf Mechatronischer Systeme, Heinz Nixdorf Institut, Universität Paderborn, Paderborn, 2009, pp. 85–96.

Driving concepts for bundled ultrasonic linear motors
M. Mracek, T. Hemsel, T. Sattel, P. Vasiljev, J. Wallaschek, Journal of Electroceramics 20 (2008) 153–158.

Fundamental experiments as benchmark problems for modeling ultrasonic micro-impact processes
J. Twiefel, C. Potthast, M. Mracek, T. Hemsel, T. Sattel, J. Wallaschek, Journal of Electroceramics 20 (2008) 209–214.

Control of Bundled Miniature Ultrasonic Linear Motors
T. Hemsel, M. Mracek, in: Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators, Paderborn, Germany, 2006, pp. 313–322.

Piezoelectric linear motor concepts based on coupling of longitudinal vibrations
T. Hemsel, M. Mracek, J. Twiefel, P. Vasiljev, Ultrasonics 44, Supplement (2006) e591–e596.

Synergetic driving concepts for bundled miniature ultrasonic linear motors
M. Mracek, T. Hemsel, Ultrasonics 44, Supplement (2006) e597–e602.

Self configuration of a novel miniature ultrasonic linear motor
M. Mracek, P. Vasiljev, T. Hemsel, J. Wallaschek, Solid State Phenomena 113 (2006) 167–172.