A5081257269- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Acoustic Wave Resonator Technologies
- Multiferroics and related materials
- Nuclear Materials and Properties
- Bone Tissue Engineering Materials
- Fusion materials and technologies
- Additive Manufacturing and 3D Printing Technologies
- Semiconductor materials and devices
- Metal and Thin Film Mechanics
- Nuclear reactor physics and engineering
- Ultrasonics and Acoustic Wave Propagation
- Dielectric materials and actuators
- Innovations in Concrete and Construction Materials
- Layered Double Hydroxides Synthesis and Applications
- Nanomaterials and Printing Technologies
- Advanced Photocatalysis Techniques
Pennsylvania State University
2017-2023
Abstract The effects of acceptor doping with manganese as either MnO 2 or MnNb O 6 (MnN) CuO on the dielectric, ferroelectric, and piezoelectric properties PIN‐PMN‐PT ceramics were investigated. 2% ‐doped (6Pb(Mn 1/3 Nb 2/3 )O 3 ‐25Pb(In 1/2 ‐34Pb(Mg ‐35PbTiO ) possessed hard such high coercive field ( E C 11.7 kV/cm, low dielectric loss (tan δ 0.7%, electromechanical quality factor Q M 1011. These diminished in because lower oxygen vacancy defect concentration, exaggerated grain growth...
Abstract This paper explores the templated grain growth and texturing of Pb(Yb 1/2 Nb )O 3 ‐Pb(Mg 1/3 2/3 ‐PbTiO (PYN‐PMN‐PT) ceramics. A PbO‐CuO liquid phase was determined to substantially increase PYN‐PMN‐PT on barium titanate template particles. Texturing resulted in an 83% enhancement strain behavior (754 pm/V) compared with random ceramics (413 pm/V). The increased (PYN) content textured 21PYN‐41PMN‐38PT a high coercive field 13.9 kV/cm. Residual templates reduced polarization from...
Abstract This study explores sintering and piezoelectricity of ZnO‐doped perovskite Pb(In 1/2 Nb )O 3 ‐Pb(Zn 1/3 2/3 ‐PbTiO (PIN‐PZN‐PT) ceramics. The enhanced densification PIN‐PZN‐PT is attributed to the formation oxygen vacancies by incorporation Zn 2+ into B‐site increased rate bulk diffusion relative undoped PIN‐PZN‐PT. Incorporation lattice tetragonal character as demonstrated peak splitting Curie temperature. Sintering in flowing reduced solubility resulted rhombohedral prevented...
Abstract Presented here is a proof of concept demonstration the templated grain growth (TGG) process for development [001] c fibre-textured Pb(Zr x Ti 1- )O 3 (PZT) ceramics. BaTiO platelets (5 and 10 vol.%) were selected to seed highly oriented PZT grains resulting in texture fractions as high 94%. The TGG was observed be critically dependent upon addition excess PbO liquid phase may driven by dissolution into matrix. Solid solution incorporation during sintering resulted structural shift...
Abstract This paper reports on the phase formation of perovskite Pb(In 1/2 Nb )O 3 ‐Pb(Zn 1/3 2/3 ‐PbTiO ( PIN ‐ PZN PT ) powder when doped with 0.04 to 0.83 mol% ZnO. Air calcination undoped mixtures for 4 hours at 800°C resulted in a mixture Pb 2 Zn 0.29 1.71 O 6.565 pyrochlore, perovskite, and In . ZnO dopant concentrations as low increased rate near pure 0.5 μm particle size heated air. all cases PbTiO formed prior formation. doping promotes by increasing reactivity intermediate...