High dielectric permittivity and electrostrictive strain in a wide temperature range in relaxor ferroelectric (1-x)[Pb(Mg1/3Nb2/3)O3-PbTiO3]-xBa(Zn1/3Nb2/3)O3 solid solutions.
In: Ceramics International, Jg. 45 (2019-04-01), Heft 5, S. 5518-5524
Online
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Zugriff:
Abstract High electric field-induced strain with ultralow hysteresis, which is often generated based on electrostrictive effects in ferroelectric materials, is highly desired due to its potential applications in high-precision displacement actuators. In this paper, (1- x)[Pb(Mg 1/3 Nb 2/3)O 3 -PbTiO 3 ]- x Ba(Zn 1/3 Nb 2/3)O 3 [(1- x)(PMN-PT)- x BZN] ceramics were fabricated by a solid-state reaction method. The effect of Ba(Zn 1/3 Nb 2/3)O 3 (BZN) content on dielectric and electrostrictive properties in relaxor ferroelectric PMN-PT solid solutions was investigated in detail by dielectric spectra, polarization-electric field (P - E) hysteresis loops and strain-electric field (S - E) curves. With an increasing BZN content, the temperature stability of the dielectric permittivity of (1- x)(PMN-PT)- x BZN is improved due to the formation of two coexistent phases. A high electrostrictive strain (~0.17% at 60 kV/cm) with an ultralow hysteresis (<10%) characteristic is obtained in a composition where x = 0.1725. The strain versus polarization (S - P) curves measured from 30 °C to 130 °C can be well fitted based on a quadratic relation, suggesting the dominating role of the electrostrictive effect. The longitudinal electrostrictive coefficient Q 33 for this system ranges from 0.0254 m4/C2 to 0.0318 m4/C2. Our results suggest that (1- x)(PMN-PT)- x BZN ferroelectric ceramics are potential candidates for applications in capacitors and high-precision displacement actuators. [ABSTRACT FROM AUTHOR]
Titel: |
High dielectric permittivity and electrostrictive strain in a wide temperature range in relaxor ferroelectric (1-x)[Pb(Mg1/3Nb2/3)O3-PbTiO3]-xBa(Zn1/3Nb2/3)O3 solid solutions.
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Autor/in / Beteiligte Person: | Jin, Li ; Luo, Wenting ; Jing, Ruiyi ; Qiao, Jun ; Pang, Jing ; Du, Hongliang ; Zhang, Lin ; Hu, Qingyuan ; Tian, Ye ; Wei, Xiaoyong ; Liu, Gang ; Yan, Yan |
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Zeitschrift: | Ceramics International, Jg. 45 (2019-04-01), Heft 5, S. 5518-5524 |
Veröffentlichung: | 2019 |
Medientyp: | academicJournal |
ISSN: | 0272-8842 (print) |
DOI: | 10.1016/j.ceramint.2018.12.009 |
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