Unknown

Dataset Information

0

Local disorder in Na0.5Bi0.5TiO3-piezoceramic determined by 3D electron diffuse scattering.

ABSTRACT: Local structural distortions in Na0.5Bi0.5TiO3-based solid solutions have been proved to play a crucial role in understanding and tuning their enhanced piezoelectric properties near the morphotropic phase boundary. In this work all local structural disorders in a lead-free ternary system, namely 85%Na0.5Bi0.5TiO3-10%Bi0.5K0.5TiO3-5%BaTiO3, were mapped in reciprocal space by 3D electron diffraction. Furthermore, a comprehensive model of the local disorder was developed by analysing the intensity and morphology of the observed weak diffuse scattering. We found that the studied ceramics consists of plate-like in-phase oxygen octahedral nanoscale domains randomly distributed in an antiphase tilted matrix. In addition, A-site chemical short-range order of Na/Bi and polar displacements contribute to different kinds of diffuse scattering. The proposed model explains all the observed diffraction features and offers insight into the ongoing controversy over the nature of local structural distortions in Na0.5Bi0.5TiO3-based solid solutions.

SUBMITTER: Neagu A 

PROVIDER: S-EPMC5624983 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature

Json Xml
altmetric image

Publications

Local disorder in Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>-piezoceramic determined by 3D electron diffuse scattering.

Neagu Alexandra A   Tai Cheuk-Wai CW  

Scientific reports 20171002 1

Local structural distortions in Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>-based solid solutions have been proved to play a crucial role in understanding and tuning their enhanced piezoelectric properties near the morphotropic phase boundary. In this work all local structural disorders in a lead-free ternary system, namely 85%Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>-10%Bi<sub>0.5</sub>K<sub>0.5</sub>TiO<sub>3</sub>-5%BaTiO<sub>3</sub>, were mapped in reciprocal space by 3D electron d  ...[more]

Similar Datasets

Unknown Topology and temperature dependence of the diffuse X-ray scattering in Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub> ferroelectric single crystals.
| S-EPMC4747085 | biostudies-literature
Unknown Enhanced torsional actuation and stress coupling in Mn-modified 0.93(Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>)-0.07BaTiO<sub>3</sub> lead-free piezoceramic system.
| S-EPMC5256243 | biostudies-literature
Unknown Monoclinic distortion, polarization rotation and piezoelectricity in the ferroelectric Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>.
| S-EPMC6038949 | biostudies-literature
Unknown Boosting the Humidity Performances of Na<sub>0.5</sub>Bi<sub>x</sub>TiO<sub>3</sub> by Tuning Bi Content.
| S-EPMC9315792 | biostudies-literature
Unknown Interfacial Oxygen Octahedral Coupling-Driven Robust Ferroelectricity in Epitaxial Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub> Thin Films.
| S-EPMC10351392 | biostudies-literature
Unknown Intrinsic and tunable ferromagnetism in Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub> through CaFeO<sub>3-δ</sub> modification.
| S-EPMC7148307 | biostudies-literature
Unknown Enhanced Energy Storage Performance in Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub>-Based Relaxor Ferroelectric Ceramics via Compositional Tailoring.
| S-EPMC9457184 | biostudies-literature
Unknown Structure, optical and magnetic properties of new Bi<sub>0.5</sub>Na<sub>0.5</sub>TiO<sub>3</sub>- SrMnO<sub>3-δ</sub> solid solution materials.
| S-EPMC6890638 | biostudies-literature
Unknown A Novel Highly Sensitive NO<sub>2</sub> Sensor Based on Perovskite Na<sub>0.5+x</sub>Bi<sub>0.5</sub>TiO<sub>3-δ</sub> Electrolyte.
| S-EPMC5504058 | biostudies-literature
Unknown A new strategy for large-scale synthesis of Na<sub>0.5</sub>Bi<sub>0.5</sub>TiO<sub>3</sub> nanowires and their application in piezocatalytic degradation.
| S-EPMC9417517 | biostudies-literature