About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
|
Advances in Dielectric Materials and Electronic Devices
|
Presentation Title |
P1-14: Nanoscale Dipole Engineered [Y, Ta] BaTiO3 Ceramics For Relaxor-like Ferroelectrics |
Author(s) |
Victoria R Pellegrino, Trisha L Whaley, Noah T Smith, Kaijie Ning, Holly Shulman, Walter A Schulze, Steven C Tidrow |
On-Site Speaker (Planned) |
Victoria R Pellegrino |
Abstract Scope |
Relaxor/relaxor-like ferroelectrics play significant roles in numerous electronic devices. The search for relaxor/relaxor-like ferroelectrics has primarily focused on materials with morphotropic phase boundary (MPB). Nanoscale dipole engineering is a novel alternative approach for the development of relaxor/relaxor-like ferroelectrics. In this work, nanoscale dipole-pair engineered [Y, Ta]: BaTiO3 (BaTi1-2x[Y, Ta]xO3, x = 0 to 0.05) ceramics has been manufactured based on two-step solid-reaction sintering. The dielectric relaxor behavior has been investigated from aspects of temperature, frequency, dipole concentration, crystal structure, microstructure, and optical bandgap. The results indicate that [Y, Ta] acts as an effective dipole in BaTiO3 to produce relaxor-like ferroelectric material that possesses enhanced properties. |