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Title: Relationship in dielectric, ferroelectric behaviors and large strain response of BaTiO<inf>3</inf>-doped (Bi<inf>0.4871</inf>Na<inf>0.4871</inf>)La<inf>0.0172</inf>TiO<inf>3</inf> ceramics
Authors: Panupong Jaiban
Puripat Kantha
Kamonpan Pengpat
Soodkhet Pojprapai
Watcharapong Wongkeo
Muangjai Unruan
Nuttapon Pisitpipathsin
Keywords: Materials Science
Issue Date: 13-Mar-2019
Abstract: © 2019 IOP Publishing Ltd. (1-x)(Bi0.4871Na0.4871)La0.0172TiO3-xBaTiO3 ceramics with x = 0.06 and 0.10 were prepared using a solid-state sintering method. The composition x = 0.06 shows coexistence of R3c and P4bm relaxor antiferroelectric phases, while a two-phase mixture of P4bm relaxor antiferroelectric and P4mm is observed for x = 0.10. The P4bm relaxor antiferroelectric nanodomains cause dielectric frequency dispersion in both ceramics. The different characteristics in ferroelectric order of R3c and P4mm phases affect their P-E and S-E hysteresis loops significantly. With the concentration x = 0.10, large piezoelectric coefficient can be pronounced. The result here suggests that BNLT properties may be tunable by BT doping, which could be applied with much potential use with lead-free actuator applications.
ISSN: 20531591
Appears in Collections:CMUL: Journal Articles

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