Fan, Longlong and Chen, Jun and Kang, Huajun and Liu, Laijun and Fang, Liang and Deng, Jinxia and Yu, Ranbo and Xing, Xianran (2012) Structure, piezoelectric, and ferroelectric properties of BaZrO 3 substituted Bi(Mg 1/2Ti 1/2)O 3-PbTiO 3 perovskite. Journal of Applied Physics, 111 (10). pp. 104118-1. ISSN 0021-8979
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Abstract
The structure and electric properties of (0.9-x)Bi(Mg1/2 Ti 1/2)O3-xPbTiO3-0.1BaZrO3(0.45 ≤x ≤0.53) ceramics were investigated. The morphotropic phase boundary between tetragonal ferroelectric and pseudo-cubic relaxor phases is ascertained at x=0.50. The BaZrO3 substitution can much reduce the coercive field of Bi(Mg1/2 Ti1/2)O3-PbTiO3. The studies on temperature dependence of both ferroelectric and dielectric constant indicate a direct evidence for the antiferroelectric relaxor phase, which was ever suggested in the binary system of Bi(Mg1/2 Ti1/2)O3-PbTiO3. The phase transition of ferroelectric to antiferroelectric relaxor produces the thermal depoling below the Curie temperature. The ceramic of BMT-0.47PT-0.1BZ exhibits a high strain 0.37% and a large-signal d33 (530 pm/V) in the antiferroelectric-relaxor phase. BaZrO3 substituted Bi(Mg1/2 Ti1/2)O3-PbTiO3 shows an analogous phase diagram to that of lead-free (Bi, Na)TiO 3-BaTiO 3.
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| Item Type: | Article (Commonwealth Reporting Category C) |
|---|---|
| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Access to Published version allowed due to publisher copyright policy. |
| Faculty / Department / School: | No Faculty |
| Date Deposited: | 17 Oct 2017 01:37 |
| Last Modified: | 18 Oct 2017 02:07 |
| Uncontrolled Keywords: | anti ferroelectrics; batio; binary systems; coercive field; depoling; ferroelectric property; High strains; large-signals; lead-free; morphotropic phase boundaries; relaxor phasis; relaxors; temperature dependence; TiO; ceramics; organic compounds; dielectric materials; electricity; alkali metals; metallurgy and metallography; |
| Fields of Research : | 03 Chemical Sciences > 0306 Physical Chemistry (incl. Structural) > 030606 Structural Chemistry and Spectroscopy 02 Physical Sciences > 0299 Other Physical Sciences > 029999 Physical Sciences not elsewhere classified 09 Engineering > 0904 Chemical Engineering > 090499 Chemical Engineering not elsewhere classified |
| Socio-Economic Objective: | E Expanding Knowledge > 97 Expanding Knowledge > 970103 Expanding Knowledge in the Chemical Sciences |
| Identification Number or DOI: | 10.1063/1.4722286 |
| URI: | http://eprints.usq.edu.au/id/eprint/31984 |
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