caa a22 4500 44536291X CHVBK 20180317142920.0 cr unu---uuuuu 170323e20110601xx s 000 0 eng 10.1007/s10832-011-9638-7 doi (NATIONALLICENCE)springer-10.1007/s10832-011-9638-7 High piezoelectric actuation response in graded Nd2O3 and ZrO2 doped BaTiO3 structures [Elektronische Daten] [Relva Buchanan, Eusiuk Park, Rajesh Surana, Harshani Tennakone, Kirthi Tennakone] High electromechanical strains have been developed in this study in Barium Titanate ceramics, suitably doped with Nd and Zr to form a controlled concentration gradient, leading to a dome-like structure on sintering. Compacted pellets constituted of layers of barium titanate powder of varying minor amounts of Nd and Zr powders, incorporated as nitrates precursors, acquire this dome shape on sintering at 1300-1320oC and cooling to the ambient temperature, the result of the residual thermoelastic strain. The dome structures exhibit high electromechanical responses, and the piezoelectric coefficients (deduced from electric field induced strains measurements in dome-up and dome-down positions) are also found to be exceptionally high. These Nd and Zr doped barium titanate structures could find applications as an environmentally benign material for fabrication of high displacement functionally graded electromechanical actuators in a single sintering step process. Springer Science+Business Media, LLC, 2011 Piezoelectric actuator nationallicence High strain nationallicence Barium titanate nationallicence Neodymium oxide nationallicence Zirconium oxide nationallicence Buchanan Relva Department of Chemical and Materials Engineering, University of Cincinnati, 45221-0012, Cincinnati, OH, USA aut Park Eusiuk Department of Chemical and Materials Engineering, University of Cincinnati, 45221-0012, Cincinnati, OH, USA aut Surana Rajesh Department of Chemical and Materials Engineering, University of Cincinnati, 45221-0012, Cincinnati, OH, USA aut Tennakone Harshani Department of Chemical and Materials Engineering, University of Cincinnati, 45221-0012, Cincinnati, OH, USA aut Tennakone Kirthi Department of Chemical and Materials Engineering, University of Cincinnati, 45221-0012, Cincinnati, OH, USA aut Journal of Electroceramics Springer US; http://www.springer-ny.com 26/1-4(2011-06-01), 116-121 1385-3449 26:1-4<116 2011 26 10832 https://doi.org/10.1007/s10832-011-9638-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10832-011-9638-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Buchanan Relva Department of Chemical and Materials Engineering, University of Cincinnati, 45221-0012, Cincinnati, OH, USA aut NATIONALLICENCE 700 1- Park Eusiuk Department of Chemical and Materials Engineering, University of Cincinnati, 45221-0012, Cincinnati, OH, USA aut NATIONALLICENCE 700 1- Surana Rajesh Department of Chemical and Materials Engineering, University of Cincinnati, 45221-0012, Cincinnati, OH, USA aut NATIONALLICENCE 700 1- Tennakone Harshani Department of Chemical and Materials Engineering, University of Cincinnati, 45221-0012, Cincinnati, OH, USA aut NATIONALLICENCE 700 1- Tennakone Kirthi Department of Chemical and Materials Engineering, University of Cincinnati, 45221-0012, Cincinnati, OH, USA aut NATIONALLICENCE 773 0- Journal of Electroceramics Springer US; http://www.springer-ny.com 26/1-4(2011-06-01), 116-121 1385-3449 26:1-4<116 2011 26 10832 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer