Perovskite relaxor-PBTI03 based ferroelectric ceramics with ultrahigh dielectric and piezoelectric properties through polar nanoregions engineering
US10811593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Apr 3, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N30/097
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Embodiments of the invention can be directed to controlling and/or engineering the size and/or volume of polar nanoregions (PNRs) of ferroelectric polycrystalline material systems. Some embodiments can achieved this via composition modifications to cause changes in the PNRs and/or local structure. Some embodiments can be used to control and/or engineer dielectric, piezoelectric, and/or electromechanical properties of polycrystalline materials. Controlling and/or engineering the PNRs may facilitate improvements to the dielectric, piezoelectric, and/or electromechanical properties of materials. Controlling and/or engineering the PNRs may further facilitate generating a piezoelectric material that may be useful for many different piezoelectric applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.