About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Advances in Dielectric Materials and Electronic Devices
|
| Presentation Title |
Relaxor-like Behavior in Dipole-Pair [Y, Ta] Substituted BaTiO<sub>3</sub> Ceramics |
| Author(s) |
Victoria R. Pellegrino, Benjamin N. Conley, Kaijie Ning, Holly Shulman, Steven M. Pilgrim, Walter A. Schulze, Steven C. Tidrow |
| On-Site Speaker (Planned) |
Victoria R. Pellegrino |
| Abstract Scope |
Relaxor and relaxor-like dielectrics are playing critical roles for advanced electronic devices. Dipolar-pair engineering is a promising route for creating novel relaxor-like dielectrics. In this work, we report dipole-pair [Y, Ta] substituted BaTiO<sub>3</sub> ceramics and their relaxor-like behavior. The fabrication of BaTi<sub>1-2x</sub>[Y, Ta]<sub>x</sub>O<sub>3</sub>, x = 0 to 0.5, ceramics is conducted based on the solid-state reaction processing with subsequent characterization reported of material microstructure, optical bandgap, temperature dependent DC resistivity, and temperature/frequency dependent relative permittivity. Dielectric evolution as a function of [Y, Ta] concentration in BaTiO<sub>3</sub> ceramics is reported. The dielectric diffuseness behavior originating from specific [Y, Ta] concentrations is observed and considered as a relaxor-like dielectric property that distinguishes itself from traditional relaxor materials. The discoveries from these efforts are anticipated to enable more rapid development for novel relaxor-like ferroelectric materials. |