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Polar domain structural evolution under electric field and temperature in the (Bi0.5 Na0.5)TiO3 -0.06BaTiO3 piezoceramics
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Zhao, Jinyan, Zhang, Nan, Ren, Wei, Niu, Gang, Walker, David, Thomas, Pam A., Wang, Lingyan and Ye, Zuo-Guang (2018) Polar domain structural evolution under electric field and temperature in the (Bi0.5 Na0.5)TiO3 -0.06BaTiO3 piezoceramics. Journal of the American Ceramic Society, 102 (1). pp. 437-447. doi:10.1111/jace.15883
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Official URL: http://dx.doi.org/10.1111/jace.15883
Abstract
Lead‐free bismuth sodium titanate and related compounds are of great interest as promising candidates for piezoelectric applications. However, the full understanding of this family of materials is still a challenge partly because of their structural complexity and different behaviors with or without the application of an external electric field. Here, piezoresponse force microscopy is used to gain insight into the mesoscopic‐scale domain structure of the morphotropic phase boundary (MPB) composition of (1‐x)Bi0.5Na0.5TiO3‐xBaTiO3 solid solution at x = 0.06 (abbreviated as BNT‐6BT). The evolution of the domains with the changes of the electric field and temperature has been thoroughly examined in conjunction with the crystal structure analysis and dielectric studies. It is found that ferroelectric domains with size of hundreds of nanometers are embedded in a relaxor state without visible domains on a mesoscopic scale, which are considered to contribute to the tetragonal and cubic phases in the material, respectively. Temperature‐independent domain configuration is observed in the unpoled sample from room temperature to 200°C. While, temperature‐dependent domain configuration is observed in the poled sample. The homogenously poled state breaks into the mixed domain configuration containing polydomain structure and invisible state around the so‐called depoling temperature. The structural changes on different length scales are also discussed. This work provides an in‐depth understanding of the structural and domain changes under an electric field and the temperature‐dependent domain evolution in both unpoled and poled states in the BNT‐BT solid solution of the MPB composition.
| Item Type: | Journal Article | ||||||||||||||||||||||||||||||||||||
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| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||||||||||||||||||||||||||||||
| Divisions: | Faculty of Science > Physics | ||||||||||||||||||||||||||||||||||||
| Library of Congress Subject Headings (LCSH): | Piezoelectric ceramics, Ferroelectricity, Atomic force microscopy | ||||||||||||||||||||||||||||||||||||
| Journal or Publication Title: | Journal of the American Ceramic Society | ||||||||||||||||||||||||||||||||||||
| Publisher: | Wiley-Blackwell Publishing Ltd. | ||||||||||||||||||||||||||||||||||||
| ISSN: | 0002-7820 | ||||||||||||||||||||||||||||||||||||
| Official Date: | 20 June 2018 | ||||||||||||||||||||||||||||||||||||
| Dates: |
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| Date of first compliant deposit: | 21 November 2018 | ||||||||||||||||||||||||||||||||||||
| Volume: | 102 | ||||||||||||||||||||||||||||||||||||
| Number: | 1 | ||||||||||||||||||||||||||||||||||||
| Page Range: | pp. 437-447 | ||||||||||||||||||||||||||||||||||||
| DOI: | 10.1111/jace.15883 | ||||||||||||||||||||||||||||||||||||
| Status: | Peer Reviewed | ||||||||||||||||||||||||||||||||||||
| Publication Status: | Published | ||||||||||||||||||||||||||||||||||||
| Publisher Statement: | This is the peer reviewed version of the following article: Zhao J, Zhang N, Ren W, et al. Polar domain structural evolution under electric field and temperature in the (Bi0.5Na0.5)TiO3‐0.06BaTiO3 piezoceramics. J Am Ceram Soc. 2019;102:437–447. https://doi.org/10.1111/jace.15883, which has been published in final form at http://dx.doi.org/10.1111/jace.15883. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. | ||||||||||||||||||||||||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||||||||||||||||||||||||||||||
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