Abstract:
:BaTi1-xSnxO3 (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 Sn4+ concentrations, which is explained by the compositional fluctuation model.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ren P,Liu Z,Wang Q,Peng B,Ke S,Fan H,Zhao Gdoi
10.1038/s41598-017-07192-xsubject
Has Abstractpub_date
2017-07-27 00:00:00pages
6693issue
1issn
2045-2322pii
10.1038/s41598-017-07192-xjournal_volume
7pub_type
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