Structure and good piezoelectric performance in the complex system of Pb[(Zn,Ni)Nb]O3–Pb[(In,Yb)Nb]O3–Pb(Zr,Hf,Ti)O3
- Univ. of Science and Technology, Beijing (China)
- Tianjin Normal Univ. (China)
High-performance piezoelectrics are always demanded for the high-end application. In this study, a complex piezoelectric system of 0.49Pb(Zn1/2Ni1/2)1/3Nb2/3O3–xPb(In1/2Yb1/2)1/2Nb1/2O3–(0.51 –x)Pb(Zr1/2Hf1/2)0.1Ti0.9O3 (0.16 ≤ x ≤ 0.23) was fabricated through the solid-state method. The structure, ferroelectric, piezoelectric, and dielectric properties were investigated. The optimum piezoelectric coefficient d33 of 761 pC/N, high Curie temperature of 169 °C, dielectric permittivity (εr) of 4557, and electromechanical coupling coefficient (kp) of 63% were found at the morphotropic phase boundary composition of x = 0.19, which are superior to other complex piezoelectric materials. In particular, a significant large-signal of 913 pm/V and low strain hysteresis (6%) was obtained in the temperature range of 20–170 °C. Temperature-dependent x-ray diffraction (XRD) has demonstrated that good temperature stability is put down to the structure stability. The agreement between the calculated lattice strain from in situ high-energy synchrotron XRD data and the macroscopic measurements suggests that the large lattice strain has a dominant contribution to the high piezoelectric response. The high piezoelectric performance and good temperature stability makes it potential for application.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Natural Science Foundation of China (NSFC); Fundamental Research Funds for the Central Universities (China); Japan Synchrotron Radiation Research Inst. (JASRI)
- Grant/Contract Number:
- AC02-06CH11357; 21825102; 21701126; 21731001; FRF-TP-18-001C2; 2019A1167; 2019A1095; 2019A1340; 2019B1120
- OSTI ID:
- 1681216
- Journal Information:
- Journal of Applied Physics, Vol. 128, Issue 2; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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