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AuthorSaleem, Mohsin
AuthorHwan, Lim Dong
AuthorKim, In-Sung
AuthorKim, Min-Soo
AuthorMaqbool, Adnan
AuthorNisar, Umair
AuthorPervez, Syed Atif
AuthorFarooq, Umer
AuthorFarooq, Muhammad Umer
AuthorKhalil, Hafiz Muhammad Waseem
AuthorJeong, Soon-Jong
Available date2018-09-24T05:58:45Z
Publication Date2018-09
Publication NameScientific Reports
Identifierhttp://dx.doi.org/10.1038/s41598-018-32133-7
CitationRevealing 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.
ISSN2045-2322
URIhttp://hdl.handle.net/10576/11098
AbstractIn 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.
Languageen
PublisherNature Research
SubjectNatural history
Biology
Physical sciences
Earth sciences
Environmental sciences
TitleRevealing of Core Shell Effect on Frequency-Dependent Properties of Bi-based Relaxor/Ferroelectric Ceramic Composites.
TypeArticle
Pagination1-12
Issue Number1
Volume Number8
ESSN2045-2322


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