| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1499382 | Scripta Materialia | 2012 | 4 Pages |
Abstract
Anomalous piezoelectricity SrTiO3–Bi12TiO20 (ST–BT) composite ceramics fabricated by traditional sintering technology were first studied by positron annihilation lifetime spectroscopy and Doppler broadening spectroscopy. A large number of crystal defects were observed in ST–BT composite ceramics with the sintering temperature below 980 °C. The piezoelectric effect appeared concurrently with a high concentration of single-vacancy defects in the ceramics, suggesting that it may be closely related to the microstructure. This further proves that the flexoelectric effect is the origin of non-ferroelectric piezoelectricity.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
L.J. Zhang, T. Wang, L.H. Wang, J.D. Liu, M.L. Zhao, B.J. Ye,