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

Ayrikyan A, Kastner A, Khansur NH, Yasui S, Itoh M, Webber KG (2017)

Publication Status: Published

Publication Type: Journal article

Publication year: 2017

Journal

IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control Institute of Electrical and Electronics Engineers (IEEE)

Publisher: IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

Book Volume: 64

Pages Range: 1127-1134

Journal Issue: 7

DOI: 10.1109/TUFFC.2017.2701882

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.

Authors with CRIS profile

Neamul Hayet Khansur Lehrstuhl für Glas und Keramik Kyle Grant Webber Professur für Werkstoffwissenschaften (Funktionskeramik)

Involved external institutions

Tokyo Institute of Technology JP Japan (JP) Technische Universität Darmstadt DE Germany (DE)

How to cite

APA:

Ayrikyan, A., Kastner, A., Khansur, N.H., Yasui, S., Itoh, M., & Webber, K.G. (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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