Revealing of Core Shell Effect on Frequency-Dependent Properties of Bi-based Relaxor/Ferroelectric Ceramic Composites.
Author | Saleem, Mohsin |
Author | Hwan, Lim Dong |
Author | Kim, In-Sung |
Author | Kim, Min-Soo |
Author | Maqbool, Adnan |
Author | Nisar, Umair |
Author | Pervez, Syed Atif |
Author | Farooq, Umer |
Author | Farooq, Muhammad Umer |
Author | Khalil, Hafiz Muhammad Waseem |
Author | Jeong, Soon-Jong |
Available date | 2018-09-24T05:58:45Z |
Publication Date | 2018-09 |
Publication Name | Scientific Reports |
Identifier | http://dx.doi.org/10.1038/s41598-018-32133-7 |
Citation | Revealing of Core Shell Effect on Frequency-Dependent Properties of Bi-based Relaxor/Ferroelectric Ceramic Composites. Saleem M, Hwan LD, Kim IS, Kim MS, Maqbool A, Nisar U, Pervez SA, Farooq U, Farooq MU, Khalil HMW, Jeong SJ. Sci Rep. 2018 Sep 20;8(1):14146. doi: 10.1038/s41598-018-32133-7. |
ISSN | 2045-2322 |
Abstract | In this study, electromechanical characteristics of (1-x) BiNaTiO-xSrTiO (ST26, x = 0.26)/(1-y) BiNaTiO-ySrTiO (ST10, y = 0.1) (matrix/seed) composites were studied. The ST26 (high relaxor phase) and ST10 (a relaxor ferroelectric (RF), high ferroelectric phase) composite with large (r-ST26-ST10) and small (t-ST26-ST10) grains exhibited frequency-related dielectric properties and large strain response at a low triggering electric field (an incipient piezoelectricity). It is ascribed to a matrix-seed effect originating from the inhomogeneous composition due to the presence of two phases. The r-ST26-ST10 composite sintered at 4 h, prominent material, showed a high normalized dynamic strain (d*) of ~700 pm/V (large grains) with stable frequency dependence properties at a low field of 40 kV/cm. The properties of the r-ST26-ST10 composite exhibit less decay with frequency-related polarization and strain compared to those of t-ST26-ST10 composite. The increase in soaking time promotes the diffusion and homogenization of the microstructure in composites, leading to changes in the core-shell structure in the solid solution. The polarization and strain of the ST26-ST10 composites with the frequency are linked to the stability of the internal random fields created by non-ergodic relaxor phase of seed and the amount of phase change in the ergodic relaxor matrix. |
Language | en |
Publisher | Nature Research |
Subject | Natural history Biology Physical sciences Earth sciences Environmental sciences |
Type | Article |
Pagination | 1-12 |
Issue Number | 1 |
Volume Number | 8 |
ESSN | 2045-2322 |
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