Perovskite relaxor-PBTI03 based ferroelectric ceramics with ultrahigh dielectric and piezoelectric properties through polar nanoregions engineering

Patent · Tue Oct 20 00:00:00 EDT 2020

OSTI ID:1771541

Li, Fei; Lin, Dabin; Zhang, Shujun; Shrout, Thomas R.; Chen, Long

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.

• Research Organization: Pennsylvania State Univ., University Park, PA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FG02-07ER46417
• Assignee: The Penn State Research Foundation (University Park, PA)
• Patent Number(s): 10,811,593
• Application Number: 16/471,282
• OSTI ID: 1771541
• Resource Relation: Patent File Date: 04/03/2018
• Country of Publication: United States
• Language: English