Influence of the fabrication process on the functionality of piezoceramic patch transducers embedded in aluminum die castings

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Klassen A, Rübner M, Ilg J, Rupitsch S, Lerch R, Singer R, Körner C
Zeitschrift: Smart Materials & Structures
Verlag: Institute of Physics: Hybrid Open Access
Jahr der Veröffentlichung: 2012
Band: 21
Heftnummer: 11
ISSN: 0964-1726


Abstract


Piezoceramic patch transducers are integrated into aluminum components using high-pressure die casting. Expanded metal has proven suitable as a supporting structure for placing the patch transducers inside the die cavity and for stabilization during the injection of molten metal. However, difficulties arise when the transducers are positioned off the neutral axis within the wall of the casting. Numerical simulations of the die filling are performed to analyse the evolution of the integration process. The asymmetric infiltration of the supporting structure is identified as the major factor contributing to the formation of cracks and perforations inside the piezoceramic transducer. By means of measurements and numerical calculations of the electrical impedance of the transducer, a close relation is established between mechanical damage patterns observed in radiographs of the patch transducers and loss of performance.



FAU-Autoren / FAU-Herausgeber

Ilg, Jürgen
Lehrstuhl für Sensorik
Klassen, Alexander
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Körner, Carolin Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Lerch, Reinhard Prof. Dr.-Ing.
Lehrstuhl für Sensorik
Rübner, Matthias
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)
Rupitsch, Stefan PD Dr.
Lehrstuhl für Sensorik
Singer, Robert Prof. Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Werkstoffkunde und Technologie der Metalle)


Zitierweisen

APA:
Klassen, A., Rübner, M., Ilg, J., Rupitsch, S., Lerch, R., Singer, R., & Körner, C. (2012). Influence of the fabrication process on the functionality of piezoceramic patch transducers embedded in aluminum die castings. Smart Materials & Structures, 21(11). https://dx.doi.org/10.1088/0964-1726/21/11/115014

MLA:
Klassen, Alexander, et al. "Influence of the fabrication process on the functionality of piezoceramic patch transducers embedded in aluminum die castings." Smart Materials & Structures 21.11 (2012).

BibTeX: 

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