Lead-Free Multilayer Piezoceramic Composites: Effect of Cosintering on Electromechanical Properties

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Ayrikyan A, Kastner A, Khansur NH, Yasui S, Itoh M, Webber K
Zeitschrift: IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control
Verlag: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Jahr der Veröffentlichung: 2017
Band: 64
Heftnummer: 7
Seitenbereich: 1127-1134
ISSN: 0885-3010


Abstract


The macroscopic electromechanical behavior of lead-free multilayer composites was characterized from room temperature to 150 degrees C. The polar seed component consisted of a nonergodic relaxor ( Bi1/2Na1/2) TiO3-7BaTiO(3), with an electric-field-induced long-range ferroelectric order, whereas the nonpolar matrix was an ergodic relaxor Bi-0.5(Na0.75K0.25) 0.5 TiO3-6BiAlO(3) that undergoes a reversible electric-field-induced macroscopic nonpolar-to-polar transition. Microstructural evidence of the effects of cosintering are demonstrated through examination of grain size, interdiffusion, and pore structure. By manipulating the sintering interactions between the two constituents, namely, diffusion paths and residual stresses, both internal mechanical and electrical fields, as well as compositional gradients can be used to enhance the unipolar strain over that expected by a rule of mixtures approximation, thereby improving the properties needed for application of such materials to actuator systems.



FAU-Autoren / FAU-Herausgeber

Khansur, Neamul Hayet Dr.
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Webber, Kyle Prof.
Professur für Werkstoffwissenschaften (Funktionskeramik)


Autor(en) der externen Einrichtung(en)
Technische Universität Darmstadt
Tokyo Institute of Technology


Zitierweisen

APA:
Ayrikyan, A., Kastner, A., Khansur, N.H., Yasui, S., Itoh, M., & Webber, K. (2017). Lead-Free Multilayer Piezoceramic Composites: Effect of Cosintering on Electromechanical Properties. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 64(7), 1127-1134. https://dx.doi.org/10.1109/TUFFC.2017.2701882

MLA:
Ayrikyan, Azatuhi, et al. "Lead-Free Multilayer Piezoceramic Composites: Effect of Cosintering on Electromechanical Properties." IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control 64.7 (2017): 1127-1134.

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Zuletzt aktualisiert 2018-08-09 um 07:09