Large nonlinear dielectric behavior in BaTi(1−x)SnxO(3)

BaTi(1−x)Sn(x)O(3) (BTSn, 0 ≤ x ≤ 0.30) ceramics were prepared by both the conventional sintering (CS) and sparking plasma sintering (SPS). Composition, temperature and grain size dependences of the nonlinear dielectric behaviors were systematically studied. BTSn was found to have especially large t...

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Detalles Bibliográficos
Autores principales: Ren, Pengrong, Liu, Zicheng, Wang, Qian, Peng, Biaolin, Ke, Shanming, Fan, Huiqing, Zhao, Gaoyang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5532241/
https://www.ncbi.nlm.nih.gov/pubmed/28751640
http://dx.doi.org/10.1038/s41598-017-07192-x
Descripción
Sumario:BaTi(1−x)Sn(x)O(3) (BTSn, 0 ≤ x ≤ 0.30) ceramics were prepared by both the conventional sintering (CS) and sparking plasma sintering (SPS). Composition, temperature and grain size dependences of the nonlinear dielectric behaviors were systematically studied. BTSn was found to have especially large tunability (≥90%), which is larger than most other Pb-free systems, and is comparable to Pb-based relaxors. The high dielectric tunability in BTSn is attributed to its specific domain structures. Besides, temperature dependent tunability of BTSn presents a dispersed behavior and the dispersion is enhanced with the increase of Sn(4+) concentrations, which is explained by the compositional fluctuation model.

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