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首页> 外文期刊>Ultrasonics, Ferroelectrics and Frequency Control, IEEE Transactions on >Correlation between the structure and the piezoelectric properties of lead-free (K,Na,Li)(Nb,Ta,Sb)O3 ceramics studied by XRD and Raman spectroscopy
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Correlation between the structure and the piezoelectric properties of lead-free (K,Na,Li)(Nb,Ta,Sb)O3 ceramics studied by XRD and Raman spectroscopy

机译：XRD和拉曼光谱研究无铅（K，Na，Li）（Nb，Ta，Sb）O 3陶瓷的结构与压电性能的相关性

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摘要

This article reviews on the use of Raman spectroscopy for the study of (K,Na,Li)(Nb,Ta,Sb)O3 lead-free piezoceramics. Currently, this material appears to be one of the most interesting and promising alternatives to the well-known PZT piezoelectric materials. In this work, we prepare piezoceramics with different stoichiometries and study their structural, ferroelectric, and piezoelectric properties. By using both Raman spectroscopy and X-ray diffraction, we establish a direct correlation between the structure and the properties. The results demonstrate that the wavenumber of the A1g vibration is proportional to the tetragonality, the remnant polarization, and the piezoelectric coefficients of these materials. Thus, Raman spectroscopy appears as a very useful technique for a fast evaluation of the crystalline structure and the ferroelectric/ piezoelectric properties.
机译：本文回顾了拉曼光谱在研究（K，Na，Li）（Nb，Ta，Sb）O3无铅压电陶瓷中的应用。当前，这种材料似乎是众所周知的PZT压电材料的最有趣和最有希望的替代品之一。在这项工作中，我们准备了具有不同化学计量比的压电陶瓷，并研究了它们的结构，铁电和压电特性。通过同时使用拉曼光谱和X射线衍射，我们建立了结构和性能之间的直接关联。结果表明，Alg振动的波数与这些材料的四方性，残余极化和压电系数成正比。因此，拉曼光谱法似乎是一种非常有用的技术，可用于快速评估晶体结构和铁电/压电特性。

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