工程科学学报，第41卷，第8期：961-967,2019年8月 Chinese Journal of Engineering,Vol.41,No.8:961-967,August 2019 DOI:10.13374/j.issn2095-9389.2019.08.001;http://journals.ustb.edu.cn 高居里温度铁酸铋基陶瓷的研究进展 朱立峰，张波萍四 北京科技大学材料科学与工程学院，北京100083 区通信作者，E-mail:bpzhang(@usth.cdu.cm 摘要铁酸铋-钛酸钡(BiFeO,~BaTiO,,BF-BT)基陶瓷由于具有高的居里温度T和大的自发极化强度P.,以及较高的压 电系数山：，近年来受到了广泛关注，且被认为是一种有潜力替代铅基压电陶瓷的无铅压电陶瓷体系.本文主要综述近几年来 国内外有关F-BT基陶瓷的相结构和压电性能，以及磁性能等方面的研究进展和动向，并尝试分析了该陶瓷体系在实用化的 道路上存在的迫切需要解决的问题 关键词无铅压电陶瓷：铁酸铋；钛酸钡；居里温度：铁电体 分类号TB34 Advances in research on high-Curie temperature BiFeO,-based ceramics ZHU Li-feng,ZHANG Bo-ping School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China Corresponding author,E-mail:bpzhang@ustb.edu.cn ABSTRACT Piezoelectric materials are functional materials that can realize electromechanical coupling characteristics and are widely used in electronic information,sensors,ultrasonic transducer,nondestructive testing,and communication technology.However,the current dominant piezoelectric ceramics are lead zirconium titanate systems.These systems contain lead,which is a toxic element,and the content of lead oxide or lead tetroxide in lead-based piezoelectric ceramics is over 60%.Because of the volatile and water-soluble characteristics of lead,the production and disposal of traditional lead-based piezoelectric ceramics will result in different levels of lead pollution,which will severely harm the environment and human health.With the improvement of environmental protection and the sus- tainable development of human society,the harmful effects of lead-based piezoelectric ceramics have aroused increasing attention. Countries around the world have introduced legislation to ban or restrict the use of lead-based ceramics.Thus,lead-free piezoelectric ceramics have received much attention because they are environment-friendly and pollution-free.In the last decade,countries world- wide invested a large amount of funds and labor to search and develop environment-friendly lead-free piezoelectric ceramics,which can be used to replace lead-based piezoelectric ceramics in actuators,transducers,and sensors.In recent years,BiFe0,-BaTiO,(BF-BT) lead-free solid solutions,which are considered as one of the most promising candidates for high-temperature piezoelectric applications, have received extensive attention from researchers because of their high-Curie temperature (Tc)and large spontaneous polarization (P.)as well as high piezoelectric coefficient(da).This paper mainly reviewed recent advances in BF-BT ceramics,including the phase structure and piezoelectric property,as well as the magnetic property.In addition,the problems that need to be solved before these ceramics can be practically applied were also analyzed according to the knowledge of the authors. KEY WORDS Lead-free piezoelectric ceramics;bismuth ferrite;barium titanate;Curie temperature;ferroelectric 收稿日期：2018-06-25 基金项目：国家自然科学基金资助项目(51472026)：中央高校基本科研业务费资助项目(FRF-TP-18-005A2):北京市自然科学基金资助项目 (2164066)工程科学学报,第 41 卷,第 8 期:961鄄鄄967,2019 年 8 月 Chinese Journal of Engineering, Vol. 41, No. 8: 961鄄鄄967, August 2019 DOI: 10. 13374 / j. issn2095鄄鄄9389. 2019. 08. 001; http: / / journals. ustb. edu. cn 高居里温度铁酸铋基陶瓷的研究进展 朱立峰, 张波萍苣 北京科技大学材料科学与工程学院, 北京 100083 苣通信作者, E鄄mail: bpzhang@ ustb. edu. cn 摘 要 铁酸铋鄄鄄钛酸钡(BiFeO3 鄄鄄BaTiO3 , BF鄄鄄BT) 基陶瓷由于具有高的居里温度 TC和大的自发极化强度 Ps,以及较高的压 电系数 d33 ,近年来受到了广泛关注,且被认为是一种有潜力替代铅基压电陶瓷的无铅压电陶瓷体系. 本文主要综述近几年来 国内外有关 BF鄄鄄BT 基陶瓷的相结构和压电性能,以及磁性能等方面的研究进展和动向,并尝试分析了该陶瓷体系在实用化的 道路上存在的迫切需要解决的问题. 关键词 无铅压电陶瓷; 铁酸铋; 钛酸钡; 居里温度; 铁电体 分类号 TB34 收稿日期: 2018鄄鄄06鄄鄄25 基金项目: 国家自然科学基金资助项目(51472026);中央高校基本科研业务费资助项目 (FRF鄄鄄TP鄄鄄18鄄鄄005A2);北京市自然科学基金资助项目 (2164066) Advances in research on high鄄Curie temperature BiFeO3 鄄鄄 based ceramics ZHU Li鄄feng, ZHANG Bo鄄ping 苣 School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 苣Corresponding author, E鄄mail: bpzhang@ ustb. edu. cn ABSTRACT Piezoelectric materials are functional materials that can realize electromechanical coupling characteristics and are widely used in electronic information, sensors, ultrasonic transducer, nondestructive testing, and communication technology. However, the current dominant piezoelectric ceramics are lead zirconium titanate systems. These systems contain lead, which is a toxic element, and the content of lead oxide or lead tetroxide in lead鄄based piezoelectric ceramics is over 60% . Because of the volatile and water鄄soluble characteristics of lead, the production and disposal of traditional lead鄄based piezoelectric ceramics will result in different levels of lead pollution, which will severely harm the environment and human health. With the improvement of environmental protection and the sus鄄 tainable development of human society, the harmful effects of lead鄄based piezoelectric ceramics have aroused increasing attention. Countries around the world have introduced legislation to ban or restrict the use of lead鄄based ceramics. Thus, lead鄄free piezoelectric ceramics have received much attention because they are environment鄄friendly and pollution鄄free. In the last decade, countries world鄄 wide invested a large amount of funds and labor to search and develop environment鄄friendly lead鄄free piezoelectric ceramics, which can be used to replace lead鄄based piezoelectric ceramics in actuators, transducers, and sensors. In recent years, BiFeO3 鄄鄄BaTiO3 (BF鄄鄄BT) lead鄄free solid solutions, which are considered as one of the most promising candidates for high鄄temperature piezoelectric applications, have received extensive attention from researchers because of their high鄄Curie temperature ( TC ) and large spontaneous polarization (Ps), as well as high piezoelectric coefficient (d33 ). This paper mainly reviewed recent advances in BF鄄鄄BT ceramics, including the phase structure and piezoelectric property, as well as the magnetic property. In addition, the problems that need to be solved before these ceramics can be practically applied were also analyzed according to the knowledge of the authors. KEY WORDS Lead鄄free piezoelectric ceramics; bismuth ferrite; barium titanate; Curie temperature; ferroelectric