physica status solidi (a) · 2011 · 85 citations · 46 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramic MaterialsCeramicsCrystal StructureCrystalline MaterialsDielectric CeramicsFerroelectric CeramicsFerroelectric MaterialsPiezoelectric CeramicsPiezoelectric MaterialsCrystalline StructureFerroelectric CrystalsLead-free Piezoelectric CeramicsLead-free PiezoelectricsMorphotropic Phase BoundaryPiezoelectric PropertiesPiezoelectric Single CrystalsSingle-crystal Growth
Abstract Lead‐free piezoelectric materials such as Na 0.5 Bi 0.5 TiO 3 ‐BaTiO 3 (NBBT) solid solution have been paid increasing attention from an environmental perspective. In this paper, a series of NBBT single crystals with compositions near the morphotropic phase boundary (MPB) were grown by the top‐seeded solution growth (TSSG) method. The compositional dependence of crystalline structure was investigated by high‐resolution X‐ray diffraction (XRD). In addition, the dielectric, piezoelectric and ferroelectric (FE) properties of NBBT crystals were also investigated. Excellent piezoelectric properties of NBBT crystals, especially large thickness coupling factors k t , were obtained near the MPB, which are more than or close to the performances of PZT ceramics. Moreover, the performances of NBBT crystals can be further enhanced by doping. Finally, the domain configurations of NBBT96/4 crystal were studied preliminarily. magnified image
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G. O. Jones, P. A. Thomas · Acta Crystallographica Section B Structural Science · 2002 · 954 citations
Atsushi Sasaki, Tatsuya Chiba, Youichi Mamiya et al. · Japanese Journal of Applied Physics · 1999 · 901 citations
Natural Sciences, Materials Engineering, Materials Science +17