文章信息/Info

Title:

Research Progress of Lead-Free Piezoelectric materials

作者:

朱秀; 許桂生; 劉錦峰

中國科學院上海硅酸鹽研究所人工晶體研究中心，中國科學院透明光功能無機材料重點實驗室

Author(s):

Zhu Xiu;  Xu Guisheng;  Liu Jinfeng

Artificial Crystal Center of Shanghai Institute of ceramics, CAS Key Laboratory of Transparent and Opto-functional Advanced Materials,

關鍵詞:

無鉛壓電; 陶瓷; 壓電性能; KNN; BNZ

Keywords:

Lead-free piezoelectricity;  ceramics;  crystals;  piezoelectric properties;  KNN; BNZ

DOI:

10.7502/j.issn.1674-3962.2017.04.05

文獻標志碼:

A

摘要:

鐵電壓電材料是一類非常重要的功能材料，在國民經濟、高技術和國防工業中有許多重要應用。含鉛鐵電壓電材料由于具有類型豐富、性能優異、成本低廉等優勢而被廣泛應用。隨著綠色可持續社會發展理念的深入，含鉛材料對人體及環境的不利影響日益受到關注，開發環境友好的無鉛壓電材料成為鐵電壓電材料學科的重要研究方向。目前有兩類無鉛壓電材料受關注程度較高：(1)BaTiO3(BT)、Bi0.5Na0.5TiO3(BNT)、(K,Na)NbO3(KNN) 三大體系無鉛壓電材料，因其具有準同型相界(MPB)或多型相界(PPB)結構，在相界組分附近表現出優異的壓電性能，而受到廣泛的研究；(2)鉍層狀結構和鎢青銅體系無鉛壓電材料，因其具有居里溫度高及各向異性大等特性而受到人們的重視。材料的形式包括陶瓷和單晶。本文根據國內外有關無鉛壓電材料文獻資料，分析和總結了無鉛壓電材料的組分設計、相界構建與性能調控、材料制備的最新研究進展，討論了離子或化合物摻雜改性和制備工藝對材料性能的影響，分析了無鉛壓電單晶在制備上存在的挑戰及空間生長對組分復雜的固熔體單晶生長可帶來的好處等問題。在此基礎上，提出了對無鉛鐵電壓電材料今后研究和發展方向的見解。

Abstract:

Ferroelectric and piezoelectric materials are very important functional materials and have many important applications in the national economy, high technology and defense industry. As lead-based ferroelectric materials are of type rich, excellent performance, low cost and other advantages, they are widely used. With the development of green sustainable society, the harm of lead-based materials on human and environment are realized more and more, and the environmentally friendly lead-free piezoelectric materials have become the important research direction. There are two types of lead-free piezoelectric materials are concerned about in this paper. (1) BaTiO3(BT)、Bi0.5Na0.5TiO3(BNT) and (K,Na)NbO3(KNN) lead-free piezoelectric materials, which have been studied extensively because of their morphotropic phase boundary ( MPB ) or polymorphic phase boundaries (PPB) structures, near which the materials exhibit excellent piezoelectric properties. (2) Bismuth layer structure and tungsten bronze lead-free piezoelectric materials, which present high Curie temperature and obvious anisotropy. Based on the literatures of lead-free piezoelectric materials, this paper summarizes the recent advances in component design, phase boundary construction and performance control, and material preparation. And discusses and the effect of ion or compound doping modification and the preparation process on the properties of the material. It also analyzes the challenges in the preparation of the lead-free piezoelectric single crystal and the benefits of the space growth of the complex solid-state single crystal growth. On this basis, we suggest the future development tendency of lead-free piezoelectric materials.