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Dielectric, elastic and piezoelectric properties of single domain Pb(Zn1/3Nb2/3)O3–6.5%PbTiO3 single crystal with 3m symmetry measured using one sample
Scripta Materialia ( IF 6 ) Pub Date : 2021-03-01 , DOI: 10.1016/j.scriptamat.2020.113634
Yang Xiang , Chuanwen Chen , Liguo Tang , Lei Qin , Hongmei Zhu , Wenwu Cao

Abstract In order to use finite element simulation to design electromechanical devices, self-consistent full tensor material properties are needed. The IEEE resonance technique usually requires more than 5 different geometry samples to complete the full tensor characterization, but the poling degree will depend on the sample geometry in relaxor-base ferroelectric single crystals. Hence, it is very difficult to obtain self-consistent full tensor properties using multiple samples. In this study, we used only one sample to determine the whole set of materials properties for single domain PZN–6.5%PT single crystals by combining the ultrasonic pulse-echo (UPE) method and the resonance ultrasonic spectroscopy (RUS) for the elastic and piezoelectric coefficients and the impedance analyzer for dielectric measurements. Comparison with other reported results show the advantage of our methodology and such self-consistent date set would facilitate fundamental studies on domain engineering technique as well as device design optimization using finite element software.

中文翻译:

使用一个样品测量具有 3m 对称性的单畴 Pb(Zn1/3Nb2/3)O3–6.5%PbTiO3 单晶的介电、弹性和压电特性

摘要 为了使用有限元仿真设计机电设备,需要自洽的全张量材料特性。IEEE 共振技术通常需要超过 5 个不同几何形状的样本才能完成完整的张量表征,但极化度将取决于弛豫基铁电单晶中的样本几何形状。因此,使用多个样本获得自洽的全张量属性是非常困难的。在这项研究中,我们通过结合超声脉冲回波 (UPE) 方法和共振超声光谱 (RUS) 来确定单畴 PZN–6.5%PT 单晶的整套材料特性,用于弹性和压电系数和用于介电测量的阻抗分析仪。
更新日期:2021-03-01
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