Flexoelectric characterization of BaTiO3-0.08Bi(Zn1/2Ti1/2)O3
Abstract
Flexoelectricity, the linear coupling between the strain gradient and the induced electric polarization, has been widely studied as a substitution for piezoelectricity among ceramic lead-free materials. Its potential in micro/nano-scale sensing has especially gained attention, outweighing the performance of cutting edge lead-based piezoelectric materials. In this letter, the flexoelectric coefficient of lead-free ceramic BaTiO3-0.08Bi(Zn1/2Ti1/2)O3 (BT-8BZT) was investigated in the transverse mode. The thermal dependence of flexoelectricity in BT-8BZT was investigated at temperatures ranging from 25 °C to 200 °C, and the results were compared with those of BaxSr1-xTiO3 (BST) ceramics. The effective μ12 of BT-8BZT is ∼25 μC/m at room temperature and can remain as high as ∼13 μC/m at 200 °C. This result suggests that BT-8BZT can be effectively used for micro/nano-sensing within a broad range of temperatures.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 29, 2017
- Source ID
- 10.1063/1.4984212
Entities
People
- David Cann
- Dong Hou
- Jacob L. Jones
- Shujin Huang
- Taeyang Kim
- Xiaoning Jiang
Organizations
- National Science Foundation
- North Carolina State University
- Oregon State University
- United States Army