TY - JOUR
T1 - Enhanced electric field induced strain in (1-x)((Bi0.5Na0.5)TiO3-Ba(Ti, Zr)O3)-xSrTiO3 ceramics
AU - Zhang, Xingru
AU - Jiang, Guicheng
AU - Liu, Danqing
AU - Yang, Bin
AU - Cao, Wenwu
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundation of China (Nos. 51572056 , 11404321 , 51602083 , 11572103 and 51502055 ), the Natural Science Foundation of Heilongjiang Province (Grant Nos. JC2017001, E2016042 and E2015001 ), Harbin Applied Technology Research and Development Project ( 2017RAXXJ003 ), and the National Key Basic Research Program of China (No. 2013CB632900 ).
Publisher Copyright:
© 2018 Elsevier Ltd and Techna Group S.r.l.
PY - 2018/8/1
Y1 - 2018/8/1
N2 - In this paper, we investigated electric field induced strain (EFIS) and corresponding electric properties of the ternary ceramic system (1-x) (0.93(Bi0.5Na0.5)TiO3 − 0.07Ba(Ti0.945Zr0.055)O3)-xSrTiO3 ((1-x)(BNT-BZT)-xST). The result of unipolar strain-electric field (S-E) measurement reveals a large EFIS of 0.4% at a driving electric field of 5 kV/mm is obtained in the component x = 0.2. The corresponding large signal d33 * reaches up to 800 pm/V, which is superior to most reported BNT-based ceramics. This large EFIS only occurs in a narrow area where dominated nonergodic relaxor state (NR) just converts into ergodic relaxor state (ER). As ST content increases, the measurements of the electric properties suggest a deepening ergodic degree at room temperature (RT). The ferroelectric-to-relaxor transition temperature TF-R can be modulated in a wide temperature range by the modification of ST. Since TF-R reflects the coexisting limit of NR and ER, this effect is helpful to accomplish large EFIS at a certain temperature. Due to internal bias field existed in the samples, bipolar S-E loops exhibit asymmetry to form strain memory effect, which may offer another direction for memory device design. In view of such a low driving electric field required for the large EFIS production, (1-x)(BNT-BZT)-xST ceramics become a promising candidate for application in electromechanical devices.
AB - In this paper, we investigated electric field induced strain (EFIS) and corresponding electric properties of the ternary ceramic system (1-x) (0.93(Bi0.5Na0.5)TiO3 − 0.07Ba(Ti0.945Zr0.055)O3)-xSrTiO3 ((1-x)(BNT-BZT)-xST). The result of unipolar strain-electric field (S-E) measurement reveals a large EFIS of 0.4% at a driving electric field of 5 kV/mm is obtained in the component x = 0.2. The corresponding large signal d33 * reaches up to 800 pm/V, which is superior to most reported BNT-based ceramics. This large EFIS only occurs in a narrow area where dominated nonergodic relaxor state (NR) just converts into ergodic relaxor state (ER). As ST content increases, the measurements of the electric properties suggest a deepening ergodic degree at room temperature (RT). The ferroelectric-to-relaxor transition temperature TF-R can be modulated in a wide temperature range by the modification of ST. Since TF-R reflects the coexisting limit of NR and ER, this effect is helpful to accomplish large EFIS at a certain temperature. Due to internal bias field existed in the samples, bipolar S-E loops exhibit asymmetry to form strain memory effect, which may offer another direction for memory device design. In view of such a low driving electric field required for the large EFIS production, (1-x)(BNT-BZT)-xST ceramics become a promising candidate for application in electromechanical devices.
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U2 - 10.1016/j.ceramint.2018.04.097
DO - 10.1016/j.ceramint.2018.04.097
M3 - Article
AN - SCOPUS:85045839181
SN - 0272-8842
VL - 44
SP - 12869
EP - 12876
JO - Ceramics International
JF - Ceramics International
IS - 11
ER -